15 of 33 agencies are ranked on documented mobile backend and API integration work; 1 confirmed by an independent source; payment does not affect the order.
Data as of November 3, 2026 · Evidence-weighted ranking 2026.11.7 · How this ranking works ↓
Vendar ranks 15 of 33 Mobile Development agencies serving Chicago for mobile backend and API integration: the ones with documented mobile backend and API integration work on file, verified through September 2026. The top three by evidence-weighted score are AppCrops (66/100), Digital Authority Partners (65) and VisualFizz (62). 1 of them has documented mobile backend and API integration work for clients in Chicago itself. No paid placements; every position below cites its sources. 18 Chicago Mobile Development agencies have no mobile backend and API integration claim on file and are listed unranked.
Budget in Chicago: disclosed monthly floors run from $5,000 to $6,000, median $5,500; 2 of 15 disclose a price.
Chicago, IL, USA · team 200+
HQ in Chicago · pricing not disclosed · clients 4.4/5 (9) 2 documented
AppCrops designed and developed a digital event-planning platform for Planzee across mobile and web. The page says it combines real-time technology and UX… (Independent source, topdevelopers.co)
Pricing not disclosed; budget fit cannot be checked before outreach.
Chicago, IL, USA · team 100+ strategists · since 2016
HQ in Chicago · From $6,000/month Agency's own published cases
…smartwatch app, supporting website, and Amazon Alexa voice integration. The result was a 4X increase in sales over projections. (Agency's own words, digitalauthority.me)
No independent source names mobile backend and API integration work; the evidence is first-party or editorial.
Chicago, IL, USA · team 10-49 · since 2017
HQ in Chicago · From $5,000/month · clients 5.0/5 (44) Agency's own published cases
…store routing, a store locator map using the Google Maps API, and a reverse proxy integration with Sweed so the storefront ran on the same domain. The… (Agency's own words, visualfizz.com)
No independent source names mobile backend and API integration work; the evidence is first-party or editorial.
Chicago, IL, USA · team 51-200 · since 2009
HQ in Chicago · pricing not disclosed · clients 4.9/5 (10) Agency's own published cases
Simpalm built a digital loyalty platform for Bamboo Rewards, including an iPad app, backend, and web app, which is live at 100+ locations. (Agency's own words, simpalm.com)
No independent source names mobile backend and API integration work; the evidence is first-party or editorial.
Chicago, IL, USA · team 20+ · since 2017
HQ in Chicago · pricing not disclosed · clients 4.8/5 (12) Agency's own published cases
…and performance optimization, built with Flutter and Firebase over 2 years. (Agency's own words, digipie.net)
No independent source names mobile backend and API integration work; the evidence is first-party or editorial.
Chicago, USA · team 500+
HQ in Chicago · pricing not disclosed Agency's own published cases
…the Hermes engine, SQLite, Redux, delta sync, and batch API gateways, delivering sub-200ms screen transitions on low-end Android devices. Sync latency was reduced from 12 seconds to 180 milliseconds (-98.5% faster)… (Agency's own words, softaims.com)
No independent source names mobile backend and API integration work; the evidence is first-party or editorial.
New York, USA · team 50+ · since 2018
serves Chicago from New York · pricing not disclosed · clients 4.0/5 (37) Agency's own published cases
In the Kinder Morgan case study, TekRevol reports the app monitors 100+ operational metrics in real-time across multiple teams, with 95% of internal users… (Agency's own words, tekrevol.com)
No independent source names mobile backend and API integration work; the evidence is first-party or editorial.
Chicago, USA · team 200+ · since 2005
HQ in Chicago · pricing not disclosed · clients 3.8/5 (4) Agency's own published cases
Appingine built Fitvate, a personalized workout and training app using React Native and Google Fit API, with 3.5M+ downloads globally, a 60% increase in… (Agency's own words, appingine.com)
No independent source names mobile backend and API integration work; the evidence is first-party or editorial.
Chicago, USA · team 100+ · since 2012
HQ in Chicago · pricing not disclosed · clients 4.1/5 (20) Agency's own published cases
…stack including React Native, Flutter, Swift, and AWS, so the results are not attributable to a single service. (Agency's own words, bitswits.co)
No independent source names mobile backend and API integration work; the evidence is first-party or editorial.
New York, USA
serves Chicago from New York · pricing not disclosed · clients 5.0/5 (2) Agency's own published cases
…Arabia, healthcare), using React Native for mobile.NET for backend, SQL Server for database, and Azure for hosting. (Agency's own words, locations.techgropse.com)
No independent source names mobile backend and API integration work; the evidence is first-party or editorial.
This is an absence of evidence, not a quality rating.
One sourced claim moves an agency into the ranking.
No mobile backend and API integration claim on file yet. (5)
Only Vendar profile tags name mobile backend and API integration; no outside source on file yet. (13)
| # | Agency | Score | Evid./30 | Fit/25 | Capab./15 | Reliab./10 | Transp./10 | Reput./5 | Cred./5 | Pen. | Conf. | Claims | Verified |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | AppCrops | 66 | 30 | 19 | 11.8 | 3 | 2.5 | 2.1 | 0 | -2 | n/a | 14/2 | Not verified |
| 2 | Digital Authority Partners | 65 | 20.9 | 25 | 1 | 7.2 | 10 | 0 | 1.3 | 0.8 | 7/0 | Sep 13, 2026 | |
| 3 | VisualFizz | 62 | 15.4 | 25 | 1.2 | 6.6 | 10 | 4.1 | 0 | 0.8 | 5/0 | Jun 2, 2026 | |
| 4 | Simpalm | 59 | 18 | 19 | 10 | 7.2 | 2.5 | 2.6 | 1.3 | -2 | 0.8 | 10/0 | Not verified |
| 5 | Digipie Technologies | 54 | 14.2 | 19 | 9.5 | 6.6 | 2.5 | 2.7 | 1.3 | -2 | 0.8 | 4/0 | Not verified |
| 6 | Softaims | 52 | 15.8 | 15.5 | 12.2 | 3 | 2.5 | 3.4 | 1.3 | -2 | 0.8 | 4/0 | Not verified |
| 7 | TekRevol | 50 | 15.1 | 15.9 | 9.4 | 6 | 2.5 | 3.2 | 0 | -2 | 0.8 | 5/0 | Not verified |
| 8 | Appingine | 50 | 13 | 19 | 8 | 7.2 | 2.5 | 1.3 | 1.3 | -2 | 0.8 | 2/0 | Not verified |
| 9 | BitsWits | 49 | 10.5 | 19 | 9 | 7.2 | 2.5 | 2.7 | 0 | -2 | 0.8 | 3/0 | Not verified |
| 10 | TechGropse | 47 | 13.6 | 15.9 | 13.8 | 3 | 0 | 1.2 | 1.3 | -2 | 0.8 | 5/0 | Not verified |
| 11 | TekInvent | 47 | 11.6 | 19 | 10.6 | 4.2 | 2.5 | 0.8 | 0 | -2 | 0.8 | 5/0 | Not verified |
| 12 | Eight Bit Studios | 38 | 8 | 15.5 | 9.4 | 7.2 | 0 | 3 | 0 | -5 | 0.8 | 1/0 | Not verified |
| 13 | Synergy Labs | 38 | 8 | 15.9 | 8.5 | 3 | 0 | 4.3 | 0 | -2 | 0.8 | 1/0 | Not verified |
| 14 | Developers of Chicago | 36 | 8 | 19 | 10.6 | 3 | 0 | 0 | 0 | -5 | 0.8 | 1/0 | Not verified |
| 15 | Wolfco | 31 | 6 | 15.9 | 10.6 | 3 | 0 | 0 | 0 | -5 | 0.8 | 1/0 | Not verified |
Pool 33 · ranked 15 · unranked 18 (13 with profile tags only) · verified 2 · pricing disclosed 2 · case studies on file 13 · an outside source names the work 1 · an outside document describes it 1 · lowest verified floor VisualFizz $5,000/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.
Confirmed by an independent source · headquarters in the city · price not disclosed · 61 claims on file
| Evidence for this query | 30/30 | 1 | 14 mobile backend and API integration claims on file: 2 third-party, 12 first-party, 0 profile signals; outside claims from 3 distinct sites; AppCrops designed and developed a digital event-planning platform for Planzee across mobile and web. The page says it combines real-time… (topdevelopers.co, verified); Rida a. says AppCrops delivered their app within the promised deadlines and provided a product they were proud to use. They also say the… (thumbtack.com, verified) |
| Fit to this query | 19/25 | 0.76 | Headquartered in Chicago (Chicago, IL, USA); Pricing not disclosed; Profile names startup clients |
| Capability depth | 11.8/15 | 0.787 | 1 of 1 listed services are Mobile Development services; 14 of 61 claims on file concern mobile backend and API integration |
| Reliability | 3/10 | 0.3 | Founding year not disclosed; Retention not documented |
| Transparency | 2.5/10 | 0.25 | Pricing not disclosed; Team size 200+; Process not documented |
| Reputation | 2.1/5 | 0.41 | 8 third-party reviews at 4.3 |
| 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.
AppCrops designed and developed a digital event-planning platform for Planzee across mobile and web. The page says it combines real-time technology and UX design to support event planning and social connection.
Independent source · topdevelopers.co · verified: Checked against the source page by Vendar. · weight 1 · describes work · checked Nov 2, 2026
Rida a. says AppCrops delivered their app within the promised deadlines and provided a product they were proud to use. They also say the team integrated their feedback during each phase.
Independent source · thumbtack.com · verified: Checked against the source page by Vendar. · weight 1 · describes work · checked Nov 2, 2026
AppCrops designed and developed the Fluospeak English Learning App and its landing page for client Luka Falbo, Founder at Fluospeak.
Agency's own words · appcrops.com · claimed: Recorded as the source states it; not independently confirmed. · weight 0.8 · describes work · checked Nov 1, 2026
AppCrops designed and developed the Sellers Route app for client Alex, Founder at Sellers Route, including features such as user management, route optimization, analytics, and real-time tracking.
Agency's own words · appcrops.com · claimed: Recorded as the source states it; not independently confirmed. · weight 0.8 · describes work · checked Nov 1, 2026
Alex, Founder of Sellers Route, says AppCrops worked on the design and development of the Sellers Route app, which includes user management, route optimization, analytics, and real-time tracking.
Agency's own words · appcrops.com · claimed: Recorded as the source states it; not independently confirmed. · weight 0.6 · describes work · checked Nov 1, 2026
A client states AppCrops built the Sellers Route app with complex features including user management, route optimization, analytics, and real-time tracking.
Agency's own words · appcrops.com · claimed: Recorded as the source states it; not independently confirmed. · weight 0.6 · describes work · checked Nov 1, 2026
Alex, Founder of Sellers Route, says AppCrops designed and developed the Sellers Route app, which includes features such as user management, route optimization, analytics, and real-time tracking.
Agency's own words · appcrops.com · claimed: Recorded as the source states it; not independently confirmed. · weight 0.6 · describes work · checked Nov 1, 2026
Client Alex, Founder of Sellers Route, says AppCrops designed and developed the Sellers Route app, which includes user management, route optimization, analytics, and real-time tracking. No measurable result or time period is stated.
Agency's own words · appcrops.com · claimed: Recorded as the source states it; not independently confirmed. · weight 0.6 · describes work · checked Nov 1, 2026
AppCrops worked on the design and development of the Sellers Route app for client Alex, Founder at Sellers Route; the app includes user management, route optimization, analytics, and real-time tracking.
Agency's own words · appcrops.com · claimed: Recorded as the source states it; not independently confirmed. · weight 0.6 · describes work · checked Nov 1, 2026
AppCrops lists Planzee, a social event planning app with guest list management and real-time updates, in its portfolio. The listed services are UI/UX design and mobile app development.
Agency's own words · appcrops.com · claimed: Recorded as the source states it; not independently confirmed. · weight 0.6 · describes work · checked Nov 1, 2026
AppCrops designed and developed the Sellers Route app, which includes user management, route optimization, analytics, and real-time tracking, according to Alex, Founder at Sellers Route.
Agency's own words · appcrops.com · claimed: Recorded as the source states it; not independently confirmed. · weight 0.6 · describes work · checked Nov 1, 2026
Alex, Founder at Sellers Route, says AppCrops designed and developed the Sellers Route app, which includes user management, route optimization, analytics, and real-time tracking.
Agency's own words · appcrops.com · claimed: Recorded as the source states it; not independently confirmed. · weight 0.6 · describes work · checked Nov 1, 2026
Alex, Founder @ Sellers Route, reviewed AppCrops' design and development of the Sellers Route app, which includes user management, route optimization, analytics, and real-time tracking.
Agency's own words · appcrops.com · claimed: Recorded as the source states it; not independently confirmed. · weight 0.6 · describes work · checked Nov 1, 2026
AppCrops developed Speak For Me, an app that allows users to speak typed words aloud in a natural voice, enabling real-time phone calls where the app places the call and speaks the typed words down the line.
Agency's own words · appcrops.com · claimed: Recorded as the source states it; not independently confirmed. · weight 0.6 · describes work · checked Nov 2, 2026
Reviews: Google 5 from 1 reviews; Trustpilot 4.3 from 8 reviews. Ratings never count as evidence for this question.
Published by the agency on its own site · headquarters in the city · From $5,000/month · hourly $150 - $199 · projects from $6,000 · 294 claims on file
| Evidence for this query | 15.4/30 | 0.513 | 5 mobile backend and API integration claims on file: 0 third-party, 1 first-party, 4 profile signals; outside claims from 1 distinct site; VisualFizz built a custom WordPress website for cannabis retailer Authorized Dealer, including a reusable component-based design system… (visualfizz.com, claimed) |
| Fit to this query | 25/25 | 1 | Headquartered in Chicago (Chicago, IL, USA); Retainers from $5,000/month, inside the mobile backend and API integration band; Profile names b2b clients |
| Capability depth | 1.2/15 | 0.08199999999999999 | 11 of 90 listed services are Mobile Development services; 5 of 294 claims on file concern mobile backend and API integration |
| Reliability | 6.6/10 | 0.66 | In business since 2017; Retention not documented |
| Transparency | 10/10 | 1 | Pricing disclosed (From $5,000/month); Team size 10-49; Workflow or reporting cadence documented |
| Reputation | 4.1/5 | 0.8270000000000001 | 44 third-party reviews at 5.0 |
| Market credibility | 0/5 | 0 | No awards, certifications or media mentions with a source on file |
Limits: No independent source names mobile backend and API integration work; the evidence is first-party or editorial.; Last verified June 2026; details may have changed since.
VisualFizz built a custom WordPress website for cannabis retailer Authorized Dealer, including a reusable component-based design system, mobile-optimized layouts, geolocation-based store routing, a store locator map using the Google Maps API, and a reverse proxy integration with Sweed so the storefront ran on the same domain. The page states the site enables the client's team to add new pages, launch new stores, and expand product offerings, but no performance metrics or time period are given.
Agency's own words · visualfizz.com · claimed: Recorded as the source states it; not independently confirmed. · weight 0.8 · describes work · checked Nov 1, 2026
Profile service tag: mobile_backend_and_api_integration.
Vendar profile field · Vendar profile · internal_signal: status on file · weight 0.4 · checked Jun 2, 2026
Profile service tag: mobile-backend-api-integration.
Vendar profile field · Vendar profile · internal_signal: status on file · weight 0.4 · checked Jun 2, 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 Jun 2, 2026
Listed service on Vendar: Mobile Backend and API Integration.
Vendar profile field · Vendar profile · internal_signal: status on file · weight 0.3 · checked Jun 2, 2026
Reviews: Google 5 from 44 reviews. Ratings never count as evidence for this question.
Best for (profile): Growth Marketing, Full-funnel Growth, Creative Testing, Customer Acquisition
Published by the agency on its own site · headquarters in the city · price not disclosed · 76 claims on file
| Evidence for this query | 18/30 | 0.598 | 10 mobile backend and API integration claims on file: 0 third-party, 10 first-party, 0 profile signals; outside claims from 1 distinct site; Simpalm built a digital loyalty platform for Bamboo Rewards, including an iPad app, backend, and web app, which is live at 100+ locations. (simpalm.com, claimed); Simpalm built a platform with an iPad App, backend and web app for Bamboo, a digital loyalty program company based in Chicago, IL, which… (simpalm.com, claimed) |
| Fit to this query | 19/25 | 0.76 | Headquartered in Chicago (Chicago, IL, USA); Pricing not disclosed; Profile names b2b clients |
| Capability depth | 10/15 | 0.664 | 1 of 1 listed services are Mobile Development services; 10 of 76 claims on file concern mobile backend and API integration |
| Reliability | 7.2/10 | 0.72 | In business since 2009; Retention not documented |
| Transparency | 2.5/10 | 0.25 | Pricing not disclosed; Team size 51-200; Process not documented |
| Reputation | 2.6/5 | 0.51 | 10 third-party reviews at 4.9 |
| 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 backend and API integration 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.
Simpalm built a digital loyalty platform for Bamboo Rewards, including an iPad app, backend, and web app, which is live at 100+ locations.
Agency's own words · simpalm.com · claimed: Recorded as the source states it; not independently confirmed. · weight 0.9 · describes work · checked Nov 1, 2026
Simpalm built a platform with an iPad App, backend and web app for Bamboo, a digital loyalty program company based in Chicago, IL, which is currently live at 100+ locations.
Agency's own words · simpalm.com · claimed: Recorded as the source states it; not independently confirmed. · weight 0.9 · describes work · checked Nov 1, 2026
Simpalm built a platform for Bamboo Rewards, a Chicago-based digital loyalty program company, consisting of an iPad App, backend, and web app, which is currently live at 100+ locations.
Agency's own words · simpalm.com · claimed: Recorded as the source states it; not independently confirmed. · weight 0.9 · describes work · checked Nov 1, 2026
Simpalm built a web app, mobile app, and backend engine for Ducknowl’s recruitment screening and assessment platform. Since launch, the platform has conducted more than 100,000 video interviews and parsed more than 2 million resumes; 30,000+ candidates were hired, and recruiters reduced assessment and screening time by 70%.
Agency's own words · simpalm.com · claimed: Recorded as the source states it; not independently confirmed. · weight 0.9 · describes work · checked Nov 2, 2026
Simpalm built a web app, two mobile apps, and a backend server for Bamboo Rewards, a loyalty platform for gaming cafes. The program increased customer spending by 25% and repeat visits by around 30%, while reducing operational time by 20%.
Agency's own words · simpalm.com · claimed: Recorded as the source states it; not independently confirmed. · weight 0.9 · describes work · checked Nov 2, 2026
Simpalm helped Ducknowl create a web app, mobile app, and backend engine for recruiting workflows. Since launch, the platform has conducted more than 100,000 video interviews, parsed more than 2 million resumes, and supported 30,000+ hires; recruiters reduced assessment and screening time by 70%.
Agency's own words · simpalm.com · claimed: Recorded as the source states it; not independently confirmed. · weight 0.9 · describes work · checked Nov 2, 2026
For Shift 5, a cybersecurity and IoT company based in Northern Virginia, Simpalm developed client-provided designs into HTML templates and deployed them in WordPress, building the backend of the application.
Agency's own words · simpalm.com · claimed: Recorded as the source states it; not independently confirmed. · weight 0.8 · describes work · checked Nov 1, 2026
Simpalm designed and developed full-scale mobile apps and web applications for the University of Maryland's Together Program, with native iOS and Android apps that families use to follow workshop coursework.
Agency's own words · simpalm.com · claimed: Recorded as the source states it; not independently confirmed. · weight 0.8 · describes work · checked Nov 1, 2026
Simpalm developed a comprehensive mobile and web app with a backend server for Ducknowl, a SaaS company, and has supported and enhanced the platform since its launch in 2019.
Agency's own words · simpalm.com · claimed: Recorded as the source states it; not independently confirmed. · weight 0.8 · describes work · checked Nov 1, 2026
Simpalm developed a mobile app and admin panel for Toked App with a recommendation engine, UI/UX, and an AWS-based backend, enabling personalized cannabis product discovery and user engagement features.
Agency's own words · simpalm.com · claimed: Recorded as the source states it; not independently confirmed. · weight 0.8 · describes work · checked Nov 2, 2026
Reviews: Google 5 from 9 reviews; Trustpilot 3.7 from 1 reviews. Ratings never count as evidence for this question.
Published by the agency on its own site · headquarters in the city · price not disclosed · 37 claims on file
| Evidence for this query | 14.2/30 | 0.475 | 4 mobile backend and API integration claims on file: 0 third-party, 4 first-party, 0 profile signals; outside claims from 1 distinct site; Digipie's mobile app development services page describes an AppVentures project: a lifestyle app that saw 200% growth in user retention… (digipie.net, claimed); Digipie's services page lists a HealthConnect telehealth app project with seamless video integration, built with React Native and WebRTC… (digipie.net, claimed) |
| Fit to this query | 19/25 | 0.76 | Headquartered in Chicago (Chicago, IL, USA); Pricing not disclosed; Profile names b2b clients |
| Capability depth | 9.5/15 | 0.635 | 1 of 1 listed services are Mobile Development services; 4 of 37 claims on file concern mobile backend and API integration |
| Reliability | 6.6/10 | 0.66 | In business since 2017; Retention not documented |
| Transparency | 2.5/10 | 0.25 | Pricing not disclosed; Team size 20+; Process not documented |
| Reputation | 2.7/5 | 0.535 | 12 third-party reviews at 4.8 |
| Market credibility | 1.3/5 | 0.25 | 1 recognition with a source on file: a certification per applytosupply.digitalmarketplace.service.gov.uk; Sources: applytosupply.digitalmarketplace.service.gov.uk, checked Nov 2026 |
Penalties: Profile below decision-ready status -2 (Profile status is ready_for_render_audit.)
Limits: No independent source names mobile backend and API integration 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.
Digipie's mobile app development services page describes an AppVentures project: a lifestyle app that saw 200% growth in user retention after the vendor's redesign and performance optimization, built with Flutter and Firebase over 2 years.
Agency's own words · digipie.net · claimed: Recorded as the source states it; not independently confirmed. · weight 0.9 · describes work · checked Nov 2, 2026
Digipie's services page lists a HealthConnect telehealth app project with seamless video integration, built with React Native and WebRTC over 1.5 years.
Agency's own words · digipie.net · claimed: Recorded as the source states it; not independently confirmed. · weight 0.6 · describes work · checked Nov 2, 2026
Digipie worked on HealthConnect, a telehealth platform with video integration that enabled thousands of remote consultations.
Agency's own words · digipie.net · claimed: Recorded as the source states it; not independently confirmed. · weight 0.6 · describes work · checked Nov 2, 2026
Digipie describes ShopEase Mobile as an eCommerce app with integrated AR features for shopping.
Agency's own words · digipie.net · claimed: Recorded as the source states it; not independently confirmed. · weight 0.6 · describes work · checked Nov 2, 2026
Reviews: Google 5 from 9 reviews; Trustpilot 4 from 3 reviews. Ratings never count as evidence for this question.
Published by the agency on its own site · headquarters in the city · price not disclosed · 16 claims on file
| Evidence for this query | 15.8/30 | 0.525 | 4 mobile backend and API integration claims on file: 0 third-party, 4 first-party, 0 profile signals; outside claims from 1 distinct site; Softaims engineered a 16-week offline-first mobile architecture for Trucker Path, using React Native, the Hermes engine, SQLite, Redux… (softaims.com, claimed); Softaims delivered a React Native branded checkout flow with Apple Pay/Google Pay integration, an AWS serverless backend, and… (softaims.com, claimed) |
| Fit to this query | 15.5/25 | 0.62 | Headquartered in Chicago (Chicago, USA); Pricing not disclosed |
| Capability depth | 12.2/15 | 0.813 | 1 of 1 listed services are Mobile Development services; 4 of 16 claims on file concern mobile backend and API integration |
| Reliability | 3/10 | 0.3 | Founding year not disclosed; Retention not documented |
| Transparency | 2.5/10 | 0.25 | Pricing not disclosed; Team size 500+; Process not documented |
| Reputation | 3.4/5 | 0.6809999999999999 | 22 third-party reviews at 5.0 |
| Market credibility | 1.3/5 | 0.25 | 1 recognition with a source on file: an award per techreviewer.co; Sources: techreviewer.co, checked Nov 2026 |
Penalties: Profile below decision-ready status -2 (Profile status is ready_for_render_audit.)
Limits: No independent source names mobile backend and API integration 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.
Softaims engineered a 16-week offline-first mobile architecture for Trucker Path, using React Native, the Hermes engine, SQLite, Redux, delta sync, and batch API gateways, delivering sub-200ms screen transitions on low-end Android devices. Sync latency was reduced from 12 seconds to 180 milliseconds (-98.5% faster).
Agency's own words · softaims.com · claimed: Recorded as the source states it; not independently confirmed. · weight 0.9 · describes work · checked Nov 2, 2026
Softaims delivered a React Native branded checkout flow with Apple Pay/Google Pay integration, an AWS serverless backend, and privacy-first controls for Owner.com in a 16-week rollout. Checkout latency was reduced from 10 seconds to 800ms (-92 percent).
Agency's own words · softaims.com · claimed: Recorded as the source states it; not independently confirmed. · weight 0.8 · describes work · checked Nov 1, 2026
Softaims delivered a React Native branded checkout flow for Owner.com, integrated Apple Pay and Google Pay, and implemented an AWS serverless backend. Checkout latency decreased from 10 seconds to 800ms (-92 percent).
Agency's own words · softaims.com · claimed: Recorded as the source states it; not independently confirmed. · weight 0.8 · describes work · checked Nov 2, 2026
Softaims engineered a real-time geolocation and event-driven dispatch architecture for KETV NewsWatch 7, an Omaha regional news platform, in a 16-week delivery using adaptive location sampling, WebSocket-based notifications, and edge-aware infrastructure partitioning.
Agency's own words · softaims.com · claimed: Recorded as the source states it; not independently confirmed. · weight 0.6 · describes work · checked Nov 1, 2026
Published by the agency on its own site · serves the city from New York, USA · price not disclosed · 50 claims on file
| Evidence for this query | 15.1/30 | 0.504 | 5 mobile backend and API integration claims on file: 0 third-party, 5 first-party, 0 profile signals; outside claims from 1 distinct site; In the Kinder Morgan case study, TekRevol reports the app monitors 100+ operational metrics in real-time across multiple teams, with 95%… (tekrevol.com, claimed); TekRevol engineered Roll App’s community chat platform for real-time communication. The page reports 0s latency, 0% data loss, and 99.9%… (tekrevol.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 | 9.4/15 | 0.625 | 1 of 1 listed services are Mobile Development services; 5 of 50 claims on file concern mobile backend and API integration |
| Reliability | 6/10 | 0.6 | In business since 2018; Retention not documented |
| Transparency | 2.5/10 | 0.25 | Pricing not disclosed; Team size 50+; Process not documented |
| Reputation | 3.2/5 | 0.632 | 37 third-party reviews at 4.0 |
| 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.)
Limits: No independent source names mobile backend and API integration 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.
In the Kinder Morgan case study, TekRevol reports the app monitors 100+ operational metrics in real-time across multiple teams, with 95% of internal users accessing vital business information via the app.
Agency's own words · tekrevol.com · claimed: Recorded as the source states it; not independently confirmed. · weight 0.8 · describes work · checked Nov 1, 2026
TekRevol engineered Roll App’s community chat platform for real-time communication. The page reports 0s latency, 0% data loss, and 99.9% uptime.
Agency's own words · tekrevol.com · claimed: Recorded as the source states it; not independently confirmed. · weight 0.8 · describes work · checked Nov 2, 2026
TekRevol describes integrating real-time data features, backend APIs, and role-specific access control during agile development for Kinder Morgan's mobile app.
Agency's own words · tekrevol.com · claimed: Recorded as the source states it; not independently confirmed. · weight 0.8 · describes work · checked Nov 2, 2026
TekRevol developed a mobile application for Kinder Morgan that delivered real-time data, enhanced role-based access, and user-friendly reporting features, built in React Native with Role-Based Access Control (RBAC).
Agency's own words · tekrevol.com · claimed: Recorded as the source states it; not independently confirmed. · weight 0.6 · describes work · checked Nov 1, 2026
The Rise Up Kings engagement covered end-to-end product engineering, delivering a mobile app for members and a web admin portal with multi-pillar habit tracking, real-time chat, tier-based content, and gamification.
Agency's own words · tekrevol.com · claimed: Recorded as the source states it; not independently confirmed. · weight 0.6 · describes work · checked Nov 1, 2026
Reviews: Google 4.5 from 11 reviews; Trustpilot 3.8 from 26 reviews. Ratings never count as evidence for this question.
Published by the agency on its own site · headquarters in the city · price not disclosed · 78 claims on file
| Evidence for this query | 13/30 | 0.433 | 2 mobile backend and API integration claims on file: 0 third-party, 2 first-party, 0 profile signals; outside claims from 1 distinct site; Appingine built Fitvate, a personalized workout and training app using React Native and Google Fit API, with 3.5M+ downloads globally, a… (appingine.com, claimed); Appingine built the ALDI USA grocery app using React Native, Node.js and AWS, with 10M+ monthly active users on digital platforms, a 45%… (appingine.com, claimed) |
| Fit to this query | 19/25 | 0.76 | Headquartered in Chicago (Chicago, USA); Pricing not disclosed; Profile names ecommerce clients |
| Capability depth | 8/15 | 0.532 | 1 of 1 listed services are Mobile Development services; 2 of 78 claims on file concern mobile backend and API integration |
| Reliability | 7.2/10 | 0.72 | In business since 2005; Retention not documented |
| Transparency | 2.5/10 | 0.25 | Pricing not disclosed; Team size 200+; Process not documented |
| Reputation | 1.3/5 | 0.266 | 4 third-party reviews at 3.8 |
| 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 backend and API integration 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.
Appingine built Fitvate, a personalized workout and training app using React Native and Google Fit API, with 3.5M+ downloads globally, a 60% increase in daily active users, and a 4X boost in user engagement through gamification.
Agency's own words · appingine.com · claimed: Recorded as the source states it; not independently confirmed. · weight 0.9 · describes work · checked Nov 1, 2026
Appingine built the ALDI USA grocery app using React Native, Node.js and AWS, with 10M+ monthly active users on digital platforms, a 45% increase in online orders, and a 30% faster checkout experience.
Agency's own words · appingine.com · claimed: Recorded as the source states it; not independently confirmed. · weight 0.8 · describes work · checked Nov 1, 2026
Reviews: Google 5 from 1 reviews; Trustpilot 3.4 from 3 reviews. Ratings never count as evidence for this question.
Published by the agency on its own site · headquarters in the city · price not disclosed · 38 claims on file
| Evidence for this query | 10.5/30 | 0.35 | 3 mobile backend and API integration claims on file: 0 third-party, 3 first-party, 0 profile signals; outside claims from 1 distinct site; BitsWits describes building VIFTY, a platform connecting service providers with consumers, as a multifaceted mobile app. The work combined… (bitswits.co, claimed); Client Corey Landon says BitsWits created their gym's exercise app, which is a big hit with members, with excellent wearable integration… (bitswits.co, claimed) |
| Fit to this query | 19/25 | 0.76 | Headquartered in Chicago (Chicago, USA); Pricing not disclosed; Profile names startup clients |
| Capability depth | 9/15 | 0.599 | 1 of 1 listed services are Mobile Development services; 3 of 38 claims on file concern mobile backend and API integration |
| Reliability | 7.2/10 | 0.72 | In business since 2012; Retention not documented |
| Transparency | 2.5/10 | 0.25 | Pricing not disclosed; Team size 100+; Process not documented |
| Reputation | 2.7/5 | 0.542 | 20 third-party reviews at 4.1 |
| 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: No independent source names mobile backend and API integration 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.
BitsWits describes building VIFTY, a platform connecting service providers with consumers, as a multifaceted mobile app. The work combined app development with social and booking features across a technology stack including React Native, Flutter, Swift, and AWS, so the results are not attributable to a single service.
Agency's own words · bitswits.co · claimed: Recorded as the source states it; not independently confirmed. · weight 0.6 · describes work · checked Nov 1, 2026
Client Corey Landon says BitsWits created their gym's exercise app, which is a big hit with members, with excellent wearable integration, and that they delivered the project (quote truncated).
Agency's own words · bitswits.co · claimed: Recorded as the source states it; not independently confirmed. · weight 0.6 · describes work · checked Nov 1, 2026
BitsWits built Soul Scribe, a digital diary app combining journaling with social interaction, with features including post management, in-app messaging, groups management, and privacy controls. The page lists technologies including React Native, Flutter, Swift, and AWS, so the specific platform used for the build is not attributable to one framework.
Agency's own words · bitswits.co · claimed: Recorded as the source states it; not independently confirmed. · weight 0.6 · describes work · checked Nov 2, 2026
Reviews: Google 5 from 1 reviews; Trustpilot 4 from 19 reviews. Ratings never count as evidence for this question.
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 | 13.6/30 | 0.454 | 5 mobile backend and API integration claims on file: 0 third-party, 5 first-party, 0 profile signals; outside claims from 1 distinct site; TechGropse developed an online appointment booking app with secure in-app messaging for King Khalid (Saudi Arabia, healthcare), using… (locations.techgropse.com, claimed); For Zayed University (UAE, education), TechGropse performed a UI/UX transformation, mobile app modernization, and migration to the Flutter… (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 | 13.8/15 | 0.917 | 1 of 1 listed services are Mobile Development services; 5 of 15 claims on file concern mobile backend and API integration |
| 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.)
Limits: No independent source names mobile backend and API integration 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.
TechGropse developed an online appointment booking app with secure in-app messaging for King Khalid (Saudi Arabia, healthcare), using React Native for mobile.NET for backend, SQL Server for database, and Azure for hosting.
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
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 0.6 · describes work · checked Nov 1, 2026
TechGropse built an AI-powered health insurance app for Saudi Enaya in Saudi Arabia using React Native, React, AWS, MySQL, PostgreSQL, MongoDB, and Node.js. The stated results were increased accessibility, faster claims processing, boosted trust in digital services, and improved insurance awareness.
Agency's own words · locations.techgropse.com · claimed: Recorded as the source states it; not independently confirmed. · weight 0.6 · describes work · checked Nov 1, 2026
TechGropse developed Artera, an AI-powered beauty app with personalized colour recommendations, real-time beauty analysis, and styling suggestions. The page reports 1K+ 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
The page describes Verento as a mobile app for documenting property condition and move-out verification, using a mobile app and AI integration. It reports 10k+ 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.
Positions 11 to 15: the same breakdown is on each agency's profile, linked from the table above, and in the machine-readable version below.
A claim counts as backend and API evidence when a source on file names a backend, REST or GraphQL API, cloud setup (Firebase, AWS, Azure) or an integration with another system (payments, CRM, EHR, ERP, hardware) the company built for an app, ideally with the client named.
In plain words: a case counts when it names mobile backend and API integration work and where it was published can be checked.
Ranked vendors have at least 1 claim on file that supports mobile backend and API integration under the published rubric, of which at least 1 comes from a source outside Vendar; the rest are listed unranked.
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.
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.
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.
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.
This section carries the same data that AI assistants receive.
/ai/listings/development/mobile-development/chicago/mobile-backend-api-integration
Schema vendar.ai.decision.v1 · Evidence-weighted ranking 2026.11.7 · generated Nov 4, 2026 · methodology /scoring