How many Chicago Mobile Development agencies have documented mobile app modernization work?

4 of the 33 Mobile Development agencies Vendar tracks in Chicago have at least one mobile app modernization claim on file under the published rubric, and 19 more from other cities join the ranking with documented mobile app modernization work; 1 of the 23 ranked has an outside source naming it, and 1 has one that describes the work rather than listing the service. The other 29 Chicago agencies are listed unranked until evidence is added.

What does mobile app modernization cost in Chicago?

Among the ranked agencies that disclose a monthly floor, retainers start at $4,000/month and the median floor is $6,000/month. 5 of 23 ranked agencies disclose some pricing signal.

How is this list different from the Chicago Mobile Development page?

The Chicago Mobile Development page ranks every Mobile Development agency serving the city. This page keeps only the agencies with mobile app modernization evidence on file, scores them on the mobile app modernization query with the published model, and cites the claims behind every position. The model, its weights and the rubric are on the How we rank page.

When was this list updated?

The newest profile verification among ranked agencies is September 13, 2026; the newest evidence claim was checked on November 2, 2026. Scores are recomputed from the profiles whenever a profile changes; the ranking model is version 2026.11.7.

DevelopmentMobile Development ChicagoMobile App Modernization

Chicago / Mobile App Modernization

Mobile App Modernization Companies Serving Chicago (2026)

23 agencies are ranked on documented mobile app modernization work: 4 based in or serving Chicago and 19 from other cities, marked as such; 1 confirmed by an independent source; payment does not affect the order.

Data as of November 2, 2026 · Evidence-weighted ranking 2026.11.7 · How this ranking works ↓

The answer in three lines

Compare top 3

1Digital Authority Partners 61 · From $6,000/month6 mobile app modernization claims on file: 0 third-party, 2 first-party, 4 profile signals; outside claims from 1 distinct site
2MeanPug 54 · From $5,000/month · clients 5.0/5 (30)6 mobile app modernization claims on file: 0 third-party, 1 first-party, 5 profile signals; outside claims from 1 distinct site
3IMPRiNT 49 · From $6,500/month · clients 4.3/5 (9)6 mobile app modernization claims on file: 0 third-party, 1 first-party, 5 profile signals; outside claims from 1 distinct site

Budget in Chicago: disclosed monthly floors run from $4,000 to $6,500, median $6,000; 5 of 23 disclose a price.

23 ranked agencies

BudgetSort

ForPays

Digital Authority Partners

Chicago, IL, USA · team 100+ strategists · since 2016

HQ in Chicago · From $6,000/month Agency's own published cases

Digital Authority Partners rebuilt Boxzooka's website in late 2024 with mobile-first design, industry-specific landing pages for apparel, beauty, and… (Agency's own words, digitalauthority.me)

No independent source names mobile app modernization work; the evidence is first-party or editorial.

61/100

Moderate confidence

Verified · Sources checked Sep 2026

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MeanPug

New York, NY, USA · team 10-49 · since 2020

national coverage · From $5,000/month · clients 5.0/5 (30) Agency's own published cases

MeanPug rebuilt Pinkham & Associates' digital presence, including a new website with responsive design across desktop, tablet, and mobile, clearer… (Agency's own words, meanpug.com)

No independent source names mobile app modernization work; the evidence is first-party or editorial.

54/100

Moderate confidence

Verified · Sources checked Sep 2026

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IMPRiNT

Los Angeles, CA, USA · team 10-49

national coverage · From $6,500/month · clients 4.3/5 (9) Agency's own published cases

IMPRiNT combined a Google Search restructure with a rebuilt pre-qualification landing page for an independent mortgage lender. The work delivered a 4.1x… (Agency's own words, imprint.la)

No independent source names mobile app modernization work; the evidence is first-party or editorial.

49/100

Moderate confidence

Not verified · Sources checked Jun 2026

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Optimum7

Coral Gables, FL, USA · team 10-49 · since 2007

national coverage · From $4,000/month Agency's own published cases

Optimum7 rebuilt a mobile-first CRO initiative across 13 of General Power's highest-value landing pages using heat maps, session recordings, and A/B… (Agency's own words, optimum7.com)

No independent source names mobile app modernization work; the evidence is first-party or editorial.

49/100

Moderate confidence

Verified · Sources checked Sep 2026

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Digital Silk

New York, NY, USA · team 10-49

national coverage · From $6,000/month · clients 4.4/5 (21) Agency's own published cases

Digital Silk rebuilt WAYB's eCommerce experience around its Pico foldable car seat, using a mobile-first design connecting product education and cart flow. (Agency's own words, digitalsilk.com)

No independent source names mobile app modernization work; the evidence is first-party or editorial.

48/100

Moderate confidence

Verified · Sources checked Jun 2026

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Trango Tech

New York, NY, USA · team 100+ developers · since 2003

national coverage · pricing not disclosed 1 documented

A client named Jace T states in a Google review that Trango Tech's Houston software development team modernized an outdated software platform, identifying… (Independent source, trango-tech-mobile-app-development-company-houston.localo.site)

Pricing not disclosed; budget fit cannot be checked before outreach.

47/100

Confidence not rated yet

Not verified

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Unified Infotech

New York, NY, USA · team 250+ · since 2010

national coverage · pricing not disclosed · clients 4.6/5 (34) Agency's own published cases

Unified Infotech describes platform modernization for a Global Edtech Leader and reports a 200% increase in subscriptions and a 300% increase in revenue. (Agency's own words, unifiedinfotech.net)

No independent source names mobile app modernization work; the evidence is first-party or editorial.

41/100

Moderate confidence

Not verified

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TechGropse

New York, USA

serves Chicago from New York · pricing not disclosed · clients 5.0/5 (2) Agency's own published cases

For Zayed University (UAE, education), TechGropse performed a UI/UX transformation, mobile app modernization, and migration to the Flutter framework, with… (Agency's own words, locations.techgropse.com)

No independent source names mobile app modernization work; the evidence is first-party or editorial.

40/100

Moderate confidence

Not verified

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AppMakersLA

Los Angeles, CA, USA · team 60 · since 2014

national coverage · pricing not disclosed · clients 4.9/5 (91) Agency's own published cases

…a comprehensive roadmap with clear milestones for a site rebuild for Quantum Metric. (Agency's own words, appmakersla.com)

No independent source names mobile app modernization work; the evidence is first-party or editorial.

40/100

Moderate confidence

Not verified

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Synergy Labs

Miami, FL, USA

serves Chicago from Miami · pricing not disclosed · clients 5.0/5 (52) Agency's own published cases

The Forbes Councils app rebuild by Synergy Labs increased member participation in events by 40%, with significant growth in group discussions. (Agency's own words, synergylabs.co)

No independent source names mobile app modernization work; the evidence is first-party or editorial.

38/100

Moderate confidence

Not verified

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134 more agencies considered without externally confirmed mobile app modernization work, 29 of them serving Chicago

This is an absence of evidence, not a quality rating.

One sourced claim moves an agency into the ranking.

No mobile app modernization claim on file yet. (76)

Only Vendar profile tags name mobile app modernization; no outside source on file yet. (58)

Frequently asked questions (5)

How many Chicago Mobile Development agencies have documented mobile app modernization work?: 4 of the 33 Mobile Development agencies Vendar tracks in Chicago have at least one mobile app modernization claim on file under the published rubric, and 19 more from other cities join the ranking with documented mobile app modernization work; 1 of the 23 ranked has an outside source naming it, and 1 has one that describes the work rather than listing the service. The other 29 Chicago agencies are listed unranked until evidence is added.
What does mobile app modernization cost in Chicago?: Among the ranked agencies that disclose a monthly floor, retainers start at $4,000/month and the median floor is $6,000/month. 5 of 23 ranked agencies disclose some pricing signal.
Which of them are verified?: 4 of 23 ranked agencies are verified. Verified means Vendar confirmed the company, its service and its market on official sources and stamped the profile with the date. A participation status or a partner relationship does not make a profile verified. The lowest disclosed floor among verified agencies is Optimum7 at $4,000/month.
How is this list different from the Chicago Mobile Development page?: The Chicago Mobile Development page ranks every Mobile Development agency serving the city. This page keeps only the agencies with mobile app modernization evidence on file, scores them on the mobile app modernization query with the published model, and cites the claims behind every position. The model, its weights and the rubric are on the How we rank page.
When was this list updated?: The newest profile verification among ranked agencies is September 13, 2026; the newest evidence claim was checked on November 2, 2026. Scores are recomputed from the profiles whenever a profile changes; the ranking model is version 2026.11.7.

Get my shortlist Machine-readable version All details ↓

All detailsThe full table, the rubric, the rules and the limits: the same data the machine feed serves for this ranking.Open ↓

D1Full ranking table23 ranked · click a column to sort

#	Agency	Score	Evid./30	Fit/25	Capab./15	Reliab./10	Transp./10	Reput./5	Cred./5	Pen.	Conf.	Claims	Verified
1	Digital Authority Partners	61	16.4	25	1	7.2	10	0	1.3		0.8	6/0	Sep 13, 2026
2	MeanPug	54	13.7	16.2	2.2	4.8	10	3.7	3.8		0.8	6/0	Sep 13, 2026
3	IMPRiNT	49	15.7	16.2	1.9	3	10	2.2	0		0.8	6/0	Not verified
4	Optimum7	49	13.4	16.2	1.2	7.2	10	0	1.3		0.8	5/0	Sep 13, 2026
5	Digital Silk	48	13.4	16.2	1.6	3	10	2.9	1.3		0.8	5/0	Jun 2, 2026
6	Trango Tech	47	19	10.3	10.1	7.2	2.5	0	0	-2	n/a	3/1	Not verified
7	Unified Infotech	41	9	10.3	8.8	7.2	2.5	3.6	1.3	-2	0.8	1/0	Not verified
8	TechGropse	40	11	15.9	10	3	0	1.2	1.3	-2	0.8	2/0	Not verified
9	AppMakersLA	40	9	10.3	8.4	7.2	2.5	4.8	0	-2	0.8	2/0	Not verified
10	Synergy Labs	38	8	15.9	8.5	3	0	4.3	0	-2	0.8	1/0	Not verified
11	Softaims	38	6	15.5	8.7	3	2.5	3.4	1.3	-2	0.8	1/0	Not verified
12	LOW/CODE Agency	37	12	10.3	8.4	5.4	0	2.9	0	-2	0.8	2/0	Not verified
13	Appicoders	37	8	10.3	7.9	7.2	2.5	2.7	0	-2	0.8	1/0	Not verified
14	Winklix	35	8	10.3	7.8	7.2	2.5	1.2	0	-2	0.8	1/0	Not verified
15	Software Orca	34	15	6.8	8.6	3	0	2.8	0	-2	0.8	4/0	Not verified
16	Suffescom	34	8	10.3	8	7.2	2.5	0	0	-2	0.8	1/0	Not verified
17	Apptunix	33	8	10.3	7.9	3	2.5	3.1	0	-2	0.8	1/0	Not verified
18	Simform	32	6	6.8	7.9	7.2	2.5	3.3	0	-2	0.8	1/0	Not verified
19	TechnBrains	31	6	6.8	7.9	7.2	0	3.3	1.3	-2	0.8	1/0	Not verified
20	Utility	29	9	10.3	8.3	3	0	0.6	0	-2	0.8	2/0	Not verified
21	The Hashtech	29	6	10.3	7.9	3	2.5	1.5	0	-2	0.8	1/0	Not verified
22	Marotino	27	6	10.3	8	3	2.5	1.9	0	-5	0.8	1/0	Not verified
23	Los Angeles App Devs	22	6	6.8	11.3	3	0	0	0	-5	0.8	1/0	Not verified

Pool 33 · ranked 23 · unranked 134 (58 with profile tags only) · verified 4 · pricing disclosed 5 · case studies on file 116 · an outside source names the work 1 · an outside document describes it 1 · lowest verified floor Optimum7 $4,000/month

Claims: claims for this need in the feed / of them from a third party. Confidence is the number behind the High, Moderate and Lower labels; it never changes the order.

D1Breakdown per agencyPoints, facts, claims with weights and reviews behind every position

#1 Digital Authority Partners61/100 · Moderate confidence 0.8

Published by the agency on its own site · headquarters in the city · From $6,000/month · hourly $150 - $199 · projects from $6,000 · 362 claims on file

Evidence for this query	16.4/30	0.546	6 mobile app modernization claims on file: 0 third-party, 2 first-party, 4 profile signals; outside claims from 1 distinct site; Digital Authority Partners rebuilt Boxzooka's website in late 2024 with mobile-first design, industry-specific landing pages for apparel… (digitalauthority.me, claimed); In a case study for the City of Springfield, the vendor produced two data-backed reports on high-speed broadband and the feasibility of a… (digitalauthority.me, claimed)
Fit to this query	25/25	1	Headquartered in Chicago (Chicago, IL, USA); Retainers from $6,000/month, inside the mobile app modernization band; Profile names enterprise clients
Capability depth	1/15	0.065	11 of 125 listed services are Mobile Development services; 6 of 362 claims on file concern mobile app modernization
Reliability	7.2/10	0.72	In business since 2016; Retention not documented
Transparency	10/10	1	Pricing disclosed (From $6,000/month); Team size 100+ strategists; Workflow or reporting cadence documented
Reputation	0/5	0	No third-party reviews on file
Market credibility	1.3/5	0.25	1 recognition with a source on file: an award per youtube.com; Sources: youtube.com, checked Nov 2026

Limits: No independent source names mobile app modernization work; the evidence is first-party or editorial.

Digital Authority Partners rebuilt Boxzooka's website in late 2024 with mobile-first design, industry-specific landing pages for apparel, beauty, and cosmetics verticals, prominent trust signals, and streamlined conversion forms.
Agency's own words · digitalauthority.me · claimed: Recorded as the source states it; not independently confirmed. · weight 0.6 · describes work · checked Nov 1, 2026
In a case study for the City of Springfield, the vendor produced two data-backed reports on high-speed broadband and the feasibility of a new tech hub, positioned the city to move forward with the Rebuild IL grant application process, and presented findings to Springfield city council.
Agency's own words · digitalauthority.me · claimed: Recorded as the source states it; not independently confirmed. · weight 0.6 · describes work · checked Nov 2, 2026
Profile service tag: mobile_app_modernization.
Vendar profile field · Vendar profile · internal_signal: status on file · weight 0.4 · checked Sep 13, 2026
Profile service tag: mobile-app-modernization.
Vendar profile field · Vendar profile · internal_signal: status on file · weight 0.4 · checked Sep 13, 2026
Editorial use case: Chicago buyers comparing mobile app development teams across iOS app development, Android app development, cross-platform app development, mobile MVP development, mobile backend and API integration, app launch, modernization, and support..
Vendar profile field · Vendar profile · internal_signal: status on file · weight 0.4 · checked Sep 13, 2026
Listed service on Vendar: Mobile App Modernization.
Vendar profile field · Vendar profile · internal_signal: status on file · weight 0.3 · checked Sep 13, 2026

Best for (profile): Full-funnel Growth, Landing Page Optimization, Customer Acquisition, CAC Optimization

#2 MeanPug54/100 · Moderate confidence 0.8

Published by the agency on its own site · national coverage · From $5,000/month · projects from $5,000 · 160 claims on file

Evidence for this query	13.7/30	0.456	6 mobile app modernization claims on file: 0 third-party, 1 first-party, 5 profile signals; outside claims from 1 distinct site; MeanPug rebuilt Pinkham & Associates' digital presence, including a new website with responsive design across desktop, tablet, and mobile… (meanpug.com, claimed)
Fit to this query	16.2/25	0.65	Serves Chicago from New York, NY, USA; no local office on file; Retainers from $5,000/month, inside the mobile app modernization band; Profile names ecommerce clients
Capability depth	2.2/15	0.147	9 of 45 listed services are Mobile Development services; 6 of 160 claims on file concern mobile app modernization
Reliability	4.8/10	0.48	In business since 2020; Retention not documented
Transparency	10/10	1	Pricing disclosed (From $5,000/month); Team size 10-49; Workflow or reporting cadence documented
Reputation	3.7/5	0.746	30 third-party reviews at 5.0
Market credibility	3.8/5	0.75	3 recognitions with a source on file: Inc. 5000, an award per meanpug.com, an award per pr.capecorallivingmagazine.com; Sources: pr.capecorallivingmagazine.com, checked Nov 2026; meanpug.com, checked Nov 2026

Limits: No independent source names mobile app modernization work; the evidence is first-party or editorial.

MeanPug rebuilt Pinkham & Associates' digital presence, including a new website with responsive design across desktop, tablet, and mobile, clearer navigation, and calls to action for contacting the firm or scheduling a consultation.
Agency's own words · meanpug.com · claimed: Recorded as the source states it; not independently confirmed. · weight 0.6 · describes work · checked Nov 2, 2026
Profile service tag: mobile_app_modernization.
Vendar profile field · Vendar profile · internal_signal: status on file · weight 0.4 · checked Sep 13, 2026
Profile service tag: mobile-app-modernization.
Vendar profile field · Vendar profile · internal_signal: status on file · weight 0.4 · checked Sep 13, 2026
Editorial use case: New York buyers comparing mobile app development teams across iOS app development, Android app development, cross-platform app development, mobile MVP development, mobile backend and API integration, app launch, modernization, and support..
Vendar profile field · Vendar profile · internal_signal: status on file · weight 0.4 · checked Sep 13, 2026
Editorial use case: New York shortlist fit for Mobile Development: iOS App Development, Android App Development, Cross-platform App Development, Mobile MVP Development, Mobile App Modernization..
Vendar profile field · Vendar profile · internal_signal: status on file · weight 0.4 · checked Sep 13, 2026
Listed service on Vendar: Mobile App Modernization.
Vendar profile field · Vendar profile · internal_signal: status on file · weight 0.3 · checked Sep 13, 2026

Reviews: Google 5 from 30 reviews. Ratings never count as evidence for this question.

Best for (profile): High-Ticket, Lead Generation SEO, Local SEO, Proven Results

#3 IMPRiNT49/100 · Moderate confidence 0.8

Published by the agency on its own site · national coverage · From $6,500/month · 173 claims on file

Evidence for this query	15.7/30	0.523	6 mobile app modernization claims on file: 0 third-party, 1 first-party, 5 profile signals; outside claims from 1 distinct site; IMPRiNT combined a Google Search restructure with a rebuilt pre-qualification landing page for an independent mortgage lender. The work… (imprint.la, claimed)
Fit to this query	16.2/25	0.65	Serves Chicago from Los Angeles, CA, USA; no local office on file; Retainers from $6,500/month, inside the mobile app modernization band; Profile names startup clients
Capability depth	1.9/15	0.13	9 of 52 listed services are Mobile Development services; 6 of 173 claims on file concern mobile app modernization
Reliability	3/10	0.3	Founding year not disclosed; Retention not documented
Transparency	10/10	1	Pricing disclosed (From $6,500/month); Team size 10-49; Workflow or reporting cadence documented
Reputation	2.2/5	0.43	9 third-party reviews at 4.3
Market credibility	0/5	0	No awards, certifications or media mentions with a source on file

Limits: No independent source names mobile app modernization work; the evidence is first-party or editorial.; Last verified June 2026; details may have changed since.

IMPRiNT combined a Google Search restructure with a rebuilt pre-qualification landing page for an independent mortgage lender. The work delivered a 4.1x return on ad spend by capturing purchase and refinance intent and reducing application friction.
Agency's own words · imprint.la · claimed: Recorded as the source states it; not independently confirmed. · weight 0.8 · describes work · checked Nov 2, 2026
Profile service tag: mobile_app_modernization.
Vendar profile field · Vendar profile · internal_signal: status on file · weight 0.4 · checked Jun 2, 2026
Profile service tag: mobile-app-modernization.
Vendar profile field · Vendar profile · internal_signal: status on file · weight 0.4 · checked Jun 2, 2026
Editorial use case: Los Angeles buyers comparing mobile app development teams across iOS app development, Android app development, cross-platform app development, mobile MVP development, mobile backend and API integration, app launch, modernization, and support..
Vendar profile field · Vendar profile · internal_signal: status on file · weight 0.4 · checked Jun 2, 2026
Editorial use case: Los Angeles shortlist fit for Mobile Development: React Native Development, Flutter Development, Cross-platform App Development, Mobile MVP Development, Mobile App Modernization..
Vendar profile field · Vendar profile · internal_signal: status on file · weight 0.4 · checked Jun 2, 2026
Listed service on Vendar: Mobile App Modernization.
Vendar profile field · Vendar profile · internal_signal: status on file · weight 0.3 · checked Jun 2, 2026

Reviews: Trustpilot 4.3 from 9 reviews. Ratings never count as evidence for this question.

Best for (profile): Growth marketing, Paid social, Creative-led acquisition

#4 Optimum749/100 · Moderate confidence 0.8

Published by the agency on its own site · national coverage · From $4,000/month · hourly $150 - $199 · projects from $5,000 · 316 claims on file

Evidence for this query	13.4/30	0.446	5 mobile app modernization claims on file: 0 third-party, 1 first-party, 4 profile signals; outside claims from 1 distinct site; Optimum7 rebuilt a mobile-first CRO initiative across 13 of General Power's highest-value landing pages using heat maps, session… (optimum7.com, claimed)
Fit to this query	16.2/25	0.65	Serves Chicago from Coral Gables, FL, USA; no local office on file; Retainers from $4,000/month, inside the mobile app modernization band; Profile names ecommerce clients
Capability depth	1.2/15	0.083	11 of 87 listed services are Mobile Development services; 5 of 316 claims on file concern mobile app modernization
Reliability	7.2/10	0.72	In business since 2007; Retention not documented
Transparency	10/10	1	Pricing disclosed (From $4,000/month); Team size 10-49; Workflow or reporting cadence documented
Reputation	0/5	0	No third-party reviews on file
Market credibility	1.3/5	0.25	1 recognition with a source on file: ApparelMagic partner; Sources: partners.apparelmagic.com, checked Nov 2026

Limits: No independent source names mobile app modernization work; the evidence is first-party or editorial.

Optimum7 rebuilt a mobile-first CRO initiative across 13 of General Power's highest-value landing pages using heat maps, session recordings, and A/B testing to increase inquiry submissions.
Agency's own words · optimum7.com · claimed: Recorded as the source states it; not independently confirmed. · weight 0.6 · describes work · checked Nov 1, 2026
Profile service tag: mobile_app_modernization.
Vendar profile field · Vendar profile · internal_signal: status on file · weight 0.4 · checked Sep 13, 2026
Profile service tag: mobile-app-modernization.
Vendar profile field · Vendar profile · internal_signal: status on file · weight 0.4 · checked Sep 13, 2026
Editorial use case: Miami buyers comparing mobile app development teams across iOS app development, Android app development, cross-platform app development, mobile MVP development, mobile backend and API integration, app launch, modernization, and support..
Vendar profile field · Vendar profile · internal_signal: status on file · weight 0.4 · checked Sep 13, 2026
Listed service on Vendar: Mobile App Modernization.
Vendar profile field · Vendar profile · internal_signal: status on file · weight 0.3 · checked Sep 13, 2026

Reviews: BBB. Ratings never count as evidence for this question.

Best for (profile): SERM, ORM, Community Marketing, Link Building

#5 Digital Silk48/100 · Moderate confidence 0.8

Published by the agency on its own site · national coverage · From $6,000/month · projects from $6,000 · 225 claims on file

Evidence for this query	13.4/30	0.446	5 mobile app modernization claims on file: 0 third-party, 1 first-party, 4 profile signals; outside claims from 1 distinct site; Digital Silk rebuilt WAYB's eCommerce experience around its Pico foldable car seat, using a mobile-first design connecting product… (digitalsilk.com, claimed)
Fit to this query	16.2/25	0.65	Serves Chicago from New York, NY, USA; no local office on file; Retainers from $6,000/month, inside the mobile app modernization band; Profile names ecommerce clients
Capability depth	1.6/15	0.107	11 of 69 listed services are Mobile Development services; 5 of 225 claims on file concern mobile app modernization
Reliability	3/10	0.3	Founding year not disclosed; Retention not documented
Transparency	10/10	1	Pricing disclosed (From $6,000/month); Team size 10-49; Workflow or reporting cadence documented
Reputation	2.9/5	0.586	22 third-party reviews at 4.3
Market credibility	1.3/5	0.25	1 recognition with a source on file: a press mention per prnewswire.com; Sources: prnewswire.com, checked Nov 2026

Limits: No independent source names mobile app modernization work; the evidence is first-party or editorial.; Last verified June 2026; details may have changed since.

Digital Silk rebuilt WAYB's eCommerce experience around its Pico foldable car seat, using a mobile-first design connecting product education and cart flow.
Agency's own words · digitalsilk.com · claimed: Recorded as the source states it; not independently confirmed. · weight 0.6 · describes work · checked Nov 1, 2026
Profile service tag: mobile_app_modernization.
Vendar profile field · Vendar profile · internal_signal: status on file · weight 0.4 · checked Jun 2, 2026
Profile service tag: mobile-app-modernization.
Vendar profile field · Vendar profile · internal_signal: status on file · weight 0.4 · checked Jun 2, 2026
Editorial use case: New York buyers comparing mobile app development teams across iOS app development, Android app development, cross-platform app development, mobile MVP development, mobile backend and API integration, app launch, modernization, and support..
Vendar profile field · Vendar profile · internal_signal: status on file · weight 0.4 · checked Jun 2, 2026
Listed service on Vendar: Mobile App Modernization.
Vendar profile field · Vendar profile · internal_signal: status on file · weight 0.3 · checked Jun 2, 2026

Reviews: Google 4.4 from 20 reviews; Trustpilot 3.7 from 1 reviews. Ratings never count as evidence for this question.

Best for (profile): Revenue-focused SEO, Conversion Growth, Ecommerce, In-house Team

#6 Trango Tech47/100 · Confidence not rated yet

Confirmed by an independent source · national coverage · price not disclosed · 22 claims on file

Evidence for this query	19/30	0.633	3 mobile app modernization claims on file: 1 third-party, 2 first-party, 0 profile signals; outside claims from 2 distinct sites; A client named Jace T states in a Google review that Trango Tech's Houston software development team modernized an outdated software… (trango-tech-mobile-app-development-company-houston.localo.site, verified); A client at BigBrain Games states Trango Tech delivered a dynamic and responsive app with excellent UX. (trangotech.com, claimed)
Fit to this query	10.3/25	0.41	Serves Chicago from New York, NY, USA; no local office on file; Pricing not disclosed; Profile names healthcare clients
Capability depth	10.1/15	0.67	1 of 1 listed services are Mobile Development services; 3 of 22 claims on file concern mobile app modernization
Reliability	7.2/10	0.72	In business since 2003; Retention not documented
Transparency	2.5/10	0.25	Pricing not disclosed; Team size 100+ developers; Process not documented
Reputation	0/5	0	No third-party reviews on file
Market credibility	0/5	0	No awards, certifications or media mentions with a source on file

Penalties: Profile below decision-ready status -2 (Profile status is ready_for_render_audit.)

Limits: Pricing not disclosed; budget fit cannot be checked before outreach.; Never verified against official sources.; Profile below decision-ready status: Profile status is ready_for_render_audit.

A client named Jace T states in a Google review that Trango Tech's Houston software development team modernized an outdated software platform, identifying areas for improvement and implementing solutions without disrupting operations, and that everything is now faster and easier to manage.
Independent source · trango-tech-mobile-app-development-company-houston.localo.site · verified: Checked against the source page by Vendar. · weight 1 · describes work · checked Nov 1, 2026
A client at BigBrain Games states Trango Tech delivered a dynamic and responsive app with excellent UX.
Agency's own words · trangotech.com · claimed: Recorded as the source states it; not independently confirmed. · weight 0.6 · describes work · checked Nov 1, 2026
Trango Tech built a mobile app for client ClicknCollect, an all-in-one eCommerce website, using Flutter.
Agency's own words · trangotech.com · claimed: Recorded as the source states it; not independently confirmed. · weight 0.6 · describes work · checked Nov 1, 2026

#7 Unified Infotech41/100 · Moderate confidence 0.8

Published by the agency on its own site · national coverage · price not disclosed · 14 claims on file

Evidence for this query	9/30	0.3	1 mobile app modernization claim on file: 0 third-party, 1 first-party, 0 profile signals; outside claims from 1 distinct site; Unified Infotech describes platform modernization for a Global Edtech Leader and reports a 200% increase in subscriptions and a 300%… (unifiedinfotech.net, claimed)
Fit to this query	10.3/25	0.41	Serves Chicago from New York, NY, USA; no local office on file; Pricing not disclosed; Profile names enterprise clients
Capability depth	8.8/15	0.589	1 of 1 listed services are Mobile Development services; 1 of 14 claims on file concern mobile app modernization
Reliability	7.2/10	0.72	In business since 2010; Retention not documented
Transparency	2.5/10	0.25	Pricing not disclosed; Team size 250+; Process not documented
Reputation	3.6/5	0.71	34 third-party reviews at 4.6
Market credibility	1.3/5	0.25	1 recognition with a source on file: a press mention per selectedfirms.co; Sources: selectedfirms.co, checked Nov 2026

Penalties: Profile below decision-ready status -2 (Profile status is ready_for_render_audit.)

Limits: No independent source names mobile app modernization work; the evidence is first-party or editorial.; Pricing not disclosed; budget fit cannot be checked before outreach.; Never verified against official sources.; Profile below decision-ready status: Profile status is ready_for_render_audit.

Unified Infotech describes platform modernization for a Global Edtech Leader and reports a 200% increase in subscriptions and a 300% increase in revenue.
Agency's own words · unifiedinfotech.net · claimed: Recorded as the source states it; not independently confirmed. · weight 0.9 · describes work · checked Nov 2, 2026

Reviews: Google 4.8 from 29 reviews; Trustpilot 3.7 from 5 reviews. Ratings never count as evidence for this question.

#8 TechGropse40/100 · Moderate confidence 0.8

Published by the agency on its own site · serves the city from New York, USA · price not disclosed · 15 claims on file

Evidence for this query	11/30	0.367	2 mobile app modernization claims on file: 0 third-party, 2 first-party, 0 profile signals; outside claims from 1 distinct site; For Zayed University (UAE, education), TechGropse performed a UI/UX transformation, mobile app modernization, and migration to the Flutter… (locations.techgropse.com, claimed); TechGropse modernized Zayed University's mobile application for Android and iOS. The page reports 5k+ downloads. (locations.techgropse.com, claimed)
Fit to this query	15.9/25	0.635	Lists Chicago as a service region; headquartered in New York, USA; Pricing not disclosed; Profile names startup clients
Capability depth	10/15	0.667	1 of 1 listed services are Mobile Development services; 2 of 15 claims on file concern mobile app modernization
Reliability	3/10	0.3	Founding year not disclosed; Retention not documented
Transparency	0/10	0	Pricing not disclosed; Team size not disclosed; Process not documented
Reputation	1.2/5	0.239	2 third-party reviews at 5.0
Market credibility	1.3/5	0.25	1 recognition with a source on file: a press mention per rightfirms.co; Sources: rightfirms.co, checked Nov 2026

Penalties: Profile below decision-ready status -2 (Profile status is ready_for_render_audit.)

For Zayed University (UAE, education), TechGropse performed a UI/UX transformation, mobile app modernization, and migration to the Flutter framework, with third-party integrations. The stated outcomes were successful deployment across iOS and Android and a unified digital ecosystem for university communities.
Agency's own words · locations.techgropse.com · claimed: Recorded as the source states it; not independently confirmed. · weight 0.8 · describes work · checked Nov 1, 2026
TechGropse modernized Zayed University's mobile application for Android and iOS. The page reports 5k+ downloads.
Agency's own words · locations.techgropse.com · claimed: Recorded as the source states it; not independently confirmed. · weight 0.6 · describes work · checked Nov 2, 2026

Reviews: Google 5 from 2 reviews. Ratings never count as evidence for this question.

#9 AppMakersLA40/100 · Moderate confidence 0.8

Published by the agency on its own site · national coverage · price not disclosed · 42 claims on file

Evidence for this query	9/30	0.3	2 mobile app modernization claims on file: 0 third-party, 2 first-party, 0 profile signals; outside claims from 1 distinct site; App Makers USA provided UI streamlining suggestions, feature prioritization, and a comprehensive roadmap with clear milestones for a site… (appmakersla.com, claimed); AppMakers USA offered suggestions for streamlining a site's UI, helped prioritize key features for a rebuild, and delivered a roadmap with… (appmakersla.com, claimed)
Fit to this query	10.3/25	0.41	Serves Chicago from Los Angeles, CA, USA; no local office on file; Pricing not disclosed; Profile names enterprise clients
Capability depth	8.4/15	0.56	1 of 1 listed services are Mobile Development services; 2 of 42 claims on file concern mobile app modernization
Reliability	7.2/10	0.72	In business since 2014; Retention not documented
Transparency	2.5/10	0.25	Pricing not disclosed; Team size 60; Process not documented
Reputation	4.8/5	0.9620000000000001	91 third-party reviews at 4.9
Market credibility	0/5	0	No awards, certifications or media mentions with a source on file

Penalties: Profile below decision-ready status -2 (Profile status is ready_for_render_audit.)

App Makers USA provided UI streamlining suggestions, feature prioritization, and a comprehensive roadmap with clear milestones for a site rebuild for Quantum Metric.
Agency's own words · appmakersla.com · claimed: Recorded as the source states it; not independently confirmed. · weight 0.6 · describes work · checked Nov 1, 2026
AppMakers USA offered suggestions for streamlining a site's UI, helped prioritize key features for a rebuild, and delivered a roadmap with clear milestones for Quantum Metric, with timely delivery.
Agency's own words · appmakersla.com · claimed: Recorded as the source states it; not independently confirmed. · weight 0.6 · describes work · checked Nov 1, 2026

Reviews: Google 5 from 80 reviews; Trustpilot 4.4 from 11 reviews. Ratings never count as evidence for this question.

#10 Synergy Labs38/100 · Moderate confidence 0.8

Published by the agency on its own site · serves the city from Miami, FL, USA · price not disclosed · 19 claims on file

Evidence for this query	8/30	0.267	1 mobile app modernization claim on file: 0 third-party, 1 first-party, 0 profile signals; outside claims from 1 distinct site; The Forbes Councils app rebuild by Synergy Labs increased member participation in events by 40%, with significant growth in group… (synergylabs.co, claimed)
Fit to this query	15.9/25	0.635	Lists Chicago as a service region; headquartered in Miami, FL, USA; Pricing not disclosed; Profile names startup clients
Capability depth	8.5/15	0.5660000000000001	1 of 1 listed services are Mobile Development services; 1 of 19 claims on file concern mobile app modernization
Reliability	3/10	0.3	Founding year not disclosed; Retention not documented
Transparency	0/10	0	Pricing not disclosed; Team size not disclosed; Process not documented
Reputation	4.3/5	0.862	52 third-party reviews at 5.0
Market credibility	0/5	0	No awards, certifications or media mentions with a source on file

Penalties: Profile below decision-ready status -2 (Profile status is ready_for_render_audit.)

The Forbes Councils app rebuild by Synergy Labs increased member participation in events by 40%, with significant growth in group discussions.
Agency's own words · synergylabs.co · claimed: Recorded as the source states it; not independently confirmed. · weight 0.8 · describes work · checked Nov 1, 2026

Reviews: Google 5 from 52 reviews. Ratings never count as evidence for this question.

Positions 11 to 23: the same breakdown is on each agency's profile, linked from the table above, and in the machine-readable version below.

D2What counts as evidence for this questionRubric 2026.11

A claim counts as modernization evidence when a source on file names an existing app the company took over and rebuilt, rewrote, migrated to a new stack or framework, re-architected or upgraded, ideally with what changed after (stability, ratings, speed, cost). A website redesign does not count.

Terms that count:: modernization, modernize, modernized, rebuild, rebuilt, rewrite, rewrote, re-architect, migrated, migration, legacy app, legacy system, refactor, refactored, took over the app
Minimum to be ranked:: 1 claim on file under this rubric, of which 1 from a source outside Vendar.
Budget band:: no budget band for this question

In plain words: a case counts when it names mobile app modernization work and where it was published can be checked.

D3Eligibility and orderWho is admitted, how ties break, what payment does

Ranked vendors have at least 1 claim on file that supports mobile app modernization under the published rubric, of which at least 1 comes from a source outside Vendar; the rest are listed unranked.

The vendor lists the page's service on its profile.
The vendor serves the page's market: headquarters or a listed service region in the city. When a need page has fewer than ten ranked vendors from the city, agencies from other cities join it only if they are headquartered in the same state or have published work (a case study, a project, a client review) that names the city or its state. A line saying a company serves the whole country is not enough. They are ranked by the same score, geography counts 0.3 for them, and each position says where the agency works from. Mobile development is bought remotely, so its city pages take agencies from anywhere in the United States under the same condition: documented work for the need. The same holds for SEO needs bought remotely: international, enterprise, consulting, recovery, marketplaces, startups, B2B SaaS, ecommerce, AI search visibility, audits, technical and content-led SEO. Local SEO, small business, lead generation and high-ticket services stay with agencies from the city and its state.
A need page that still has fewer than ten ranked agencies after that is filled from the city's own agencies whose sources say they offer the need but document no project for it yet. They always stand below every agency with documented work, are labelled "Offers this service; no documented project on file yet", carry lower confidence, and do not count toward the threshold that opens a page to search engines.
For an intent page, at least one claim on file supports the intent under the page's rubric, and at least one of those claims comes from a source outside Vendar. Our own service listings and profile tags describe the intent but document nothing, so they add weight to a vendor that already has outside evidence and never earn a rank on their own. Vendors without outside evidence appear below the ranking, unranked, never padded into it.
For an intent page, at least one of those claims documents work the vendor has done: a case study, a project or portfolio entry, or a client review. Service pages, price lists, positioning statements and directory listings say what a vendor offers, not what it did; they add weight to a vendor that already has documented work and never earn a documented position. They can only fill a page that is short of ten, below every documented position and labelled as such (see below).
A position may rest on case studies the agency published on its own site. It is admitted and labelled "Published by the agency on its own site" until an independent source documents the same kind of work.
Filtered views (an entry price, a pricing model, a team size) are not rankings of their own: they show agencies ranked for at least one need in the city, each with the score of its best need, and keep only those that meet the condition. An agency that does not publish the fact is listed below with the reason.
Draft and needs-data profiles are never listed.
Rank order is the score, highest first. Ties break on evidence points, then on the number of third-party claims, then alphabetically.
There is no hidden ordering: no hand-curated slug lists and no paid boost in the sort on any listing.
If an editor overrides a position, the position is labelled as an editorial placement with a written reason and ordering_basis set to editorial. No such placements exist on evidence-ranked pages today.
Every ranked position explains itself from its score components and cites the claims behind them, with their sources.
Sort: score_out_of_100, highest first; ties break on evidence points, then third-party claim count, then name.
Payment: Paid visibility never changes the order of a listing.
Top-list threshold: An intent page is offered to search engines when its ranked list has at least five evidence-backed vendors (three when the city has fewer than twenty vendors for the service). Only agencies from the city itself (headquarters or a listed service region) with documented work count toward it: agencies filled in from other cities and agencies that only offer the need do not. A page whose list rests mostly on agencies from other cities is titled “agencies serving” the city instead of “best agencies in” it, says how many are local, stays on the city page and in its feed, and is kept out of search engines until enough local agencies document the work; otherwise the same national list would stand behind six city pages. Below the threshold even with outside agencies the page stays published with noindex, keeps its URL, links and feed, and is left out of the city page's list of rankings. A page whose top ten repeats 70% or more of another need's top ten in the same city, or has the same top three, also stays noindex while the stronger of the two is offered; it opens when the lists differ. The same holds across cities: of the pages for one need whose top tens share 70% or more, only the one with the most local agencies is offered to search engines.

Weights: Evidence for this query 30 · Fit to this query 25 · Capability depth 15 · Reliability 10 · Transparency 10 · Reputation 5 · Market credibility 5. Penalties: Profile flagged for review -5 · Evidence not re-checked in 18 months -5 · No independent source on file -3 · Profile below decision-ready status -2.

D4How claims are counted

Paid agency directories that sell placement are not a source. Their reviews are not cited, never support a position and do not count toward reputation; a profile may show how many reviews such directories hold as one unnamed figure, for context only. Ratings come from open review platforms: Google, Trustpilot and BBB.
Provenance is recorded per claim: third_party, first_party, internal (a Vendar profile field) or unknown.
Verification status is recorded per claim: verified, claimed, internal_signal or unverified.
Every record on file has a role: a claim states a fact; a source reference is a link without a statement (an official site, a directory profile); a research note is Vendar's own remark. Only claims count as evidence. A source reference never earns weight, however its title reads, and a research note never reaches a page or a feed.
Every claim with a source URL is checked against that page by an AI reader and the result is recorded: confirmed, partly confirmed, not supported, or page unreachable. A claim the page does not support stops counting toward any position until a later check confirms it; a claim whose page cannot be read still counts and says so.
Third-party claims outweigh first-party claims; profile fields are the weakest signal and are labelled as such.
A position may rest on case studies the agency published on its own site; such a position is admitted and labelled "Published by the agency on its own site" on the listing, the profile and the feed (evidence_basis: own_published) until an independent source documents the same kind of work. Its confidence is at most moderate.
In the ranking, who is speaking is decided by the source address: the vendor's own site and platforms where the vendor publishes about itself (platform partner directories and portals, case-study hosting sites, paid release wires) are the vendor's own word, not an independent source, whatever domain they sit on. Client reviews on a partner directory stay third-party.
On the profile and in its feed the rule is stricter: who is speaking is decided by who wrote the text. Every claim falls into one of four classes: independent (a client, the press, a rating written by a third party); linked to the agency (a person who worked at or through it, writing in the first person); a listing the agency writes (the platforms above, or another page retelling what the agency says); and the agency itself. Only the first class counts as independent there (section 18).
A claim counts for an intent only when the rubric's terms appear in the claim or its source. The rubric is published on the page.
Claims that only describe the company's location or history are not intent evidence.
Each claim is marked by whether it documents work (describes_work in the machine feed): case studies, projects, portfolio entries and client reviews do; service pages, pricing, positioning statements, review-platform profiles and employer reviews do not.
Claims from the same source count with diminishing weight: each further claim adds half as much as the one before it. Everything an agency says about itself, on any page, is one source; outside documents are told apart by the site that published them. The number of reviews on one platform, or of pages on an agency's own site, cannot carry a position.
Evidence documented on two or more different independent sites earns a small bonus over the same amount of evidence from one site.
Review platforms that compete with Vendar stay in the machine feed with their source URL, because a claim must be checkable, but pages do not name or link them; where other sources exist, they are listed first.

Verified means Vendar confirmed the company, its service and its market on official sources and stamped the profile with the date. A participation status or a partner relationship does not make a profile verified.

D5Dates and versions

Data as of: Nov 2, 2026
Newest evidence check: Nov 2, 2026
Feed generated: Nov 4, 2026
Ranking model: Evidence-weighted ranking 2026.11.7
Rubric: Mobile App Modernization 2026.11
Update cadence: Fast signals, monthly: licence status, site alive, review rating and count, pricing pages, team page. Evidence, each base cycle: case studies, portfolio, services, client types, press and awards. Full re-verification, yearly: registry, address, ownership, every claim a rank rests on. Event-driven, within days: a vendor update, a buyer report, a dead link, a regulator record, a dispute.
Next evidence pass due by: Jan 31, 2027

Every date shown is a data date. A listing's updated date is the newest verification date among its ranked vendors and the evidence claims their ranks rest on; the same value appears in the page text, the structured data and the machine feed.

D6Known limits of the method

A position reflects documented work for the page's question, not the quality of an agency as such. Without a public case or a visible campaign the result of an agency's work cannot be known from outside. An agency with no public evidence is not worse: there is nothing to confirm it with, so it is listed below the ranking instead of being ranked low.

About 20 of 100 points rest on what the vendor says about itself without an outside check: years in business, team size, retention, prices.
The weights favour older, larger and local vendors: full marks at ten years and around 100 reviews, awards count toward market credibility, a vendor that works remotely gets 0.3 on geography, an undisclosed price gets 0.2.
The weights 30/25/15/10/10/5/5 are set by judgment and are not yet calibrated on client outcomes.
Reviews on directories are often collected by the agency itself.
The ranking decides who is speaking by the source address only: a person who worked at or through the agency writing on their own site, or a third-party page retelling what the agency says, still counts as third-party in a position. The profile and its feed already count them as the agency's word, so a position can show more third-party claims than the profile shows independent ones.
Market credibility counts recognition with a source on file, including recognition the vendor reports about itself.
Claims are checked by AI models, not by people. Code confirms that the quoted words are on the page; it cannot confirm that the page itself tells the truth. A case study on an agency's own site stays the agency's word even when the check confirms it.
Confidence is shown next to the score and does not change the order.

D7Machine-readable version

This section carries the same data that AI assistants receive.

/ai/listings/development/mobile-development/chicago/mobile-app-modernization

Schema vendar.ai.decision.v1 · Evidence-weighted ranking 2026.11.7 · generated Nov 4, 2026 · methodology /scoring

Other Chicago Mobile Development scenarios

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Mobile App Modernization in other cities

Los Angeles New York Miami Houston