
Ranks in the top three, and most of its claims match the sources they cite, but the record lacks one thing a decision needs; the agency can add it through the claim form, and the verdict updates with the data. 2 of its 46 documented work claims come from an independent source.
Missing: a published price with a unit (monthly floor, project minimum or hourly rate). Correct the data about this company
Best position #3 Android App Development in New York, of 13 · also in 25 more rankings
Why: Rated from the evidence on file (sources, independence, confirmed quotes), not by an editor.
Opens in your own account with a ready question and a link to the same data. Nothing about you is sent.
- 20% written in the last 12 months
- 0% rate it 3 stars or lower
- 50% of Google reviews answered
Clients consistently praise JumpGrowth's mobile app development work, describing the team as technically proficient, communicative, and able to deliver polished, user-friendly applications. Reviews are almost entirely positive with no criticism raised on any platform. The agency-published testimonials add reports of fast delivery and consistent release quality, though these are less independent than the Google and Trustpilot reviews.More
- Good overall experience and service3
- Technical expertise in app development2
- Communication and transparent updates2
- Quality and consistency of releases1
- Fast delivery from idea to production1
“I had a great experience with JG. They helped me with all of my mobile app development services needs and questions.”
Show 4 more quotesHide quotes
“They were not only technically proficient but also had a keen eye for design, resulting in a user-friendly and visually appealing app.”
“Communication was seamless throughout the project, with regular updates and transparent discussions about progress, timelines,”
“A steady, senior team that raised the quality bar early and kept it there, release after release.”
“We went from idea to production faster than we planned, without cutting corners on the parts that matter.”
No criticism in the 5 reviews read.
Show 2 more resultsHide results
- Mobile app development3
- Cross-platform app development (Android, iOS, web)2
- Android app development1
- Software development1
- Smart security / biometric lock product company
- XR (extended reality) startup
- Small business owner needing a mobile app
Show 6 named client quotesHide named client quotes
“Hired FOR: Android App Development in 2021”
“Partnering with JumpGrowth, GunLox transformed their vision into reality by integrating smart, secure, and easy-to-use biometric locks. This collaboration allowed them to enhance their product’s impact, improve safety measures, and ultimately protect lives.”
“10 features across 4 parts of GunLox.”
“JumpGrowth staffed an agile engineering team that created the Gun Lox app, prioritizing scalability, security, and intuitive design. The solution includes a mobile app, interactive widgets, and an admin web panel”
“Security products leave no room for guesswork. The team shipped a companion app our customers trust from the first unlock.”
“We went from idea to production faster than we planned, without cutting corners on the parts that matter.”
- Your business looks like the reviewers': smart security / biometric lock product company; xR (extended reality) startup; small business owner needing a mobile app.
- You need what reviewers hired it for: Mobile app development (3 of 7 mentions); Cross-platform app development (Android, iOS, web) (2).
- You need a published price before the first call: nothing is disclosed.
- Little outside recognition on file: fewer than two awards, certifications or press mentions with a source.
- Ask for the hourly rate, setup fee: not published.
- Ask for two client references you can call: only 2 independent accounts of its work on file.
- Ask which case is closest to your business and what the measured result was: no proof on file carries a number.
- #2 Messapps51Ranks above on this question#2#3 this oneScore5149Independent11Pricenot disclosednot disclosedModerate confidence · own published cases · Not verified
- #4 Logo Invention47Ranks below on this question#4#3 this oneScore4749Independent01Pricenot disclosednot disclosedModerate confidence · own published cases · Not verified
All detailsEverything behind the summary above: the same data the machine feed serves for JumpGrowth.Open ↓Close ↑
Score by criterion#3 Android App Development in New York: 49/100
| Criterion | Weight | Points | Share | What it rests on |
|---|---|---|---|---|
| Evidence for this query | 30 | 20 | 67% |
|
| Fit to this query | 25 | 12.4 | 50% |
|
| Capability depth | 15 | 8.3 | 55% |
|
| Reliability | 10 | 6 | 60% |
|
| Transparency | 10 | 2.5 | 25% |
|
| Reputation | 5 | 1.7 | 34% |
|
| Market credibilityweakest | 5 | 0 | 0% |
|
- -2 Profile below decision-ready status: the profile is collected but not reviewed yet.
All claims in the feed20 of 48 on file · 2 of 46 work claims from an independent source
Who says it, across all 48 claims on file: independent source 4 · linked to the agency 0 · listings the agency writes 0 · agency's own words 44. Independent share of work claims: 4.3%. 15 distinct source pages.
Claims per need in this feed: Android App Development 2 · React Native Development 7 · Mobile Backend and API Integration 4 · Flutter Development 3 · Mobile MVP Development 2. The full ledger of 48 is on the proof page.
A client hired JumpGrowth for Android app development in 2021 for a food delivery app and says the company made her ideal come to life, with help transitioning into entrepreneurship.
Independent sourcecrowdreviews.comverified: Checked against the source page by Vendar.quote confirmed, checked Nov 1, 2026describes work2021Android App DevelopmentQuote from the source page
Hired FOR: Android App Development in 2021
JumpGrowth partnered with GunLox to integrate smart, secure, and easy-to-use biometric locks, which allowed GunLox to enhance their product’s impact, improve safety measures, and ultimately protect lives.
Independent sourceyoutube.comverified: Checked against the source page by Vendar.quote confirmed, checked Nov 2, 2026describes workQuote from the source page
Partnering with JumpGrowth, GunLox transformed their vision into reality by integrating smart, secure, and easy-to-use biometric locks. This collaboration allowed them to enhance their product’s impact, improve safety measures, and ultimately protect lives.
The vendor's engineers built GunLox, an iOS and Android companion app for a smart firearm lock, using React Native, Node.js, NGINX, Angular and MongoDB. The app provides Bluetooth-enabled locking, firearm tracking, usage logs and remote access.
Agency's own wordsjumpgrowth.comclaimed: Recorded as the source states it; not independently confirmed.quote confirmed, checked Nov 1, 2026describes workReact Native DevelopmentMobile Backend and API IntegrationQuote from the source page
The GunLox Smart Firearm Lock Companion App brings a new level of security and convenience to firearm management. With Bluetooth-enabled locking, users can easily control their smart gun locks through the app, which offers features like firearm tracking, usage logs, and remote access.
The vendor built Greenaider, a web carbon footprint calculator that lets individuals and organizations measure, track and reduce their carbon footprint through goal-setting and green challenges, using React Native, Node.js, Angular, NGINX and MongoDB.
Agency's own wordsjumpgrowth.comclaimed: Recorded as the source states it; not independently confirmed.quote confirmed, checked Nov 1, 2026describes workReact Native DevelopmentQuote from the source page
The GA Footprint Calculator empowers individuals and organizations to measure, track, and reduce their carbon footprint through sustainable choices, goal-setting, and green challenges.
The Greenaider build used one React Native codebase for its mobile apps, so every release reaches iOS and Android together.
Agency's own wordsjumpgrowth.comclaimed: Recorded as the source states it; not independently confirmed.quote confirmed, checked Nov 1, 2026describes workReact Native DevelopmentQuote from the source page
One React Native codebase serves the mobile apps, so every release reaches iOS and Android together.
The vendor built Ship It Pro, an iOS and Android B2B load planning app with 3D interactive load diagrams and collaborative communication features, using React Native, Node.js, Angular, NGINX and MongoDB.
Agency's own wordsjumpgrowth.comclaimed: Recorded as the source states it; not independently confirmed.quote confirmed, checked Nov 1, 2026describes workReact Native DevelopmentQuote from the source page
Ship It Pro introduces a groundbreaking B2B load planning software, revolutionizing cargo management with its 3D interactive load diagrams and collaborative communication features.
The vendor built VowTimer, an iOS and Android app that lets wedding guests connect before the ceremony and bet on how long the ceremony will take, using React Native, Node.js, Angular, NGINX and MongoDB.
Agency's own wordsjumpgrowth.comclaimed: Recorded as the source states it; not independently confirmed.quote confirmed, checked Nov 1, 2026describes workAndroid App DevelopmentReact Native DevelopmentQuote from the source page
VowTimer provides a platform for wedding guests to connect pre-ceremony and take bets on what everyone’s thinking and how long the ceremony is going to take.
The vendor built Penn.AI, an iOS and Android AI-powered mobile application that transcribes voice meetings into speech-to-text notes in real time, using React Native, Node.js and MongoDB.
Agency's own wordsjumpgrowth.comclaimed: Recorded as the source states it; not independently confirmed.quote confirmed, checked Nov 1, 2026describes workReact Native DevelopmentQuote from the source page
This AI-powered mobile application transcribes your voice meetings in real time, providing speech-to-text notes on the fly.
JumpGrowth staffed a team that built VowTimer, a cross-platform wedding guest app for iOS and Android using React Native, with a Node.js backend, MongoDB, and an Angular admin panel.
Agency's own wordsjumpgrowth.comclaimed: Recorded as the source states it; not independently confirmed.quote confirmed, checked Nov 2, 2026describes workReact Native DevelopmentMobile Backend and API IntegrationQuote from the source page
JumpGrowth staffed a team that created a cross-platform mobile app for users where they can play and share the game with their family and friends.
JumpGrowth placed Flutter developers inside a US financial services client's security and compliance workflow to ship new capabilities on every platform. The page describes compliant feature releases and seamless team integration as outcomes.
Agency's own wordsjumpgrowth.comclaimed: Recorded as the source states it; not independently confirmed.quote confirmed, checked Nov 2, 2026describes workFlutter DevelopmentMobile Backend and API IntegrationQuote from the source page
We placed Flutter developers inside the client’s strict security and compliance workflow to ship new capabilities on every platform. Capability mix Senior Flutter Engineer Security Engineer QA Engineer Flutter · Dart · Riverpod · Dio Compliant feature releases Seamless team integration
Engineers staffed by JumpGrowth integrated Apple Pay and Google Pay as the payment gateway in the VowTimer app.
Agency's own wordsjumpgrowth.comclaimed: Recorded as the source states it; not independently confirmed.quote confirmed, checked Nov 2, 2026describes workMobile Backend and API IntegrationQuote from the source page
Engineers we staffed integrated Apple Pay and Google Pay for the payment gateway.
JumpGrowth provided Flutter developers to a US product company to launch one app on iOS and Android and set up release workflows. The page describes faster feature release cycles and reliable store releases as outcomes.
Agency's own wordsjumpgrowth.comclaimed: Recorded as the source states it; not independently confirmed.quote confirmed, checked Nov 2, 2026describes workFlutter DevelopmentQuote from the source page
We provided Flutter developers to launch one app on iOS and Android together and set up reliable release workflows. Capability mix Flutter Architect Senior Flutter Engineer Delivery Lead Flutter · Dart · Riverpod · Firebase Faster feature release cycles Reliable store releases
JumpGrowth added specialists for a US enterprise platform to bring two native apps onto one Flutter codebase and address technical debt. The page describes a unified mobile codebase and reduced technical debt as outcomes.
Agency's own wordsjumpgrowth.comclaimed: Recorded as the source states it; not independently confirmed.quote confirmed, checked Nov 2, 2026describes workFlutter DevelopmentQuote from the source page
We added specialists to bring two native apps onto one Flutter codebase, a feature at a time, and pay down technical debt. Capability mix Flutter Architect Senior Flutter Engineer QA Engineer Flutter · Dart · Bloc · Kotlin Unified mobile codebase Reduced technical debt
JumpGrowth lists Fireflies as a case study: an app for finding bars and restaurants while earning loyalty points, taken from idea to a first release.
Agency's own wordsjumpgrowth.comclaimed: Recorded as the source states it; not independently confirmed.quote confirmed, checked Nov 1, 2026describes workMobile MVP DevelopmentQuote from the source page
Friends & deals Fireflies Find new bars and restaurants while earning loyalty points. Read case study
JumpGrowth lists VowTimer as a case study: an app for wedding guests, taken from idea to a first release.
Agency's own wordsjumpgrowth.comclaimed: Recorded as the source states it; not independently confirmed.quote confirmed, checked Nov 1, 2026describes workMobile MVP DevelopmentQuote from the source page
Wedding guest app VowTimer An app for the wedding guests that came for the party. Read case study
JumpGrowth helped Ethnomet bring together telemedicine and digital health-as-a-service through product work combining technology and healthcare.
Agency's own wordsjumpgrowth.comclaimed: Recorded as the source states it; not independently confirmed.quote confirmed, checked Nov 2, 2026describes workQuote from the source page
Ethnomet's blend of telemedicine and digital health-as-a-service calls for product thinking that understands both technology and healthcare. JumpGrowth helped bring those worlds together.
For the GunLox smart firearm lock app, JumpGrowth delivered 10 features across 4 parts of the product, including a cross-platform mobile application, a web admin panel, iOS and Android widgets, and biometric security features.
Agency's own wordsjumpgrowth.comclaimed: Recorded as the source states it; not independently confirmed.quote confirmed, checked Nov 1, 2026describes workQuote from the source page
10 features across 4 parts of GunLox.
JumpGrowth staffed an agile engineering team that built the Gun Lox app, including a mobile app, interactive widgets, and an admin web panel, prioritizing scalability, security, and intuitive design.
Agency's own wordsjumpgrowth.comclaimed: Recorded as the source states it; not independently confirmed.quote confirmed, checked Nov 1, 2026describes workQuote from the source page
JumpGrowth staffed an agile engineering team that created the Gun Lox app, prioritizing scalability, security, and intuitive design. The solution includes a mobile app, interactive widgets, and an admin web panel
JumpGrowth staffed engineers for Loan Mantra, a web-based lending platform, resolving existing functional issues in the platform built by a previous vendor and later migrating the complete system to Azure for scalability and reliability.
Agency's own wordsjumpgrowth.comclaimed: Recorded as the source states it; not independently confirmed.quote confirmed, checked Nov 1, 2026describes workQuote from the source page
JumpGrowth staffed engineers who began supporting Loan Mantra by helping them to resolve all the existing functional issues occurring in the platform developed by previous vendor.
JumpGrowth staffed a team that created a web app for Greenaider, a carbon footprint platform, where users can view their footprint and edit inputs to their footprint calculations to update them in real time.
Agency's own wordsjumpgrowth.comclaimed: Recorded as the source states it; not independently confirmed.quote confirmed, checked Nov 1, 2026describes workQuote from the source page
JumpGrowth staffed a team that created a web app for users where they can view their footprint and edit inputs to their footprint calculations to accurately update their footprint in real-time.
Positions in every ranking26 rankings
26 positions: 26 where a claim on file names the need, 0 listed on offer only. The top 5 by evidence first; the rest open below.
| Ranking | Rank | Score | Claims for the need | Confidence | Weakest criterion |
|---|---|---|---|---|---|
| Android App Development · New York | #3 of 13 | 49 | 2 (1 independent) | Confidence not rated yet | Market credibility 0 of 5 |
| Android App Development · Los Angeles | #8 of 30 | 43 | 2 (1 independent) | Confidence not rated yet | Market credibility 0 of 5 |
| Android App Development · Houston | #9 of 30 | 43 | 2 (1 independent) | Confidence not rated yet | Market credibility 0 of 5 |
| Android App Development · Miami | #9 of 30 | 43 | 2 (1 independent) | Confidence not rated yet | Market credibility 0 of 5 |
| Android App Development · Chicago | #10 of 30 | 43 | 2 (1 independent) | Confidence not rated yet | Market credibility 0 of 5 |
21 more positionsHide the other 21
| Ranking | Rank | Score | Claims for the need | Confidence | Weakest criterion |
|---|---|---|---|---|---|
| Android App Development · Phoenix | #8 of 30 | 43 | 2 (1 independent) | Confidence not rated yet | Market credibility 0 of 5 |
| React Native Development · New Yorkon its own published cases | #4 of 24 | 47 | 7 (0 independent) | Moderate confidence | Market credibility 0 of 5 |
| React Native Development · Houstonon its own published cases | #11 of 24 | 41 | 7 (0 independent) | Moderate confidence | Market credibility 0 of 5 |
| React Native Development · Los Angeleson its own published cases | #11 of 24 | 41 | 7 (0 independent) | Moderate confidence | Market credibility 0 of 5 |
| React Native Development · Chicagoon its own published cases | #13 of 24 | 41 | 7 (0 independent) | Moderate confidence | Market credibility 0 of 5 |
| React Native Development · Miamion its own published cases | #10 of 24 | 41 | 7 (0 independent) | Moderate confidence | Market credibility 0 of 5 |
| React Native Development · Phoenixon its own published cases | #11 of 24 | 41 | 7 (0 independent) | Moderate confidence | Market credibility 0 of 5 |
| Mobile Backend and API Integration · New Yorkon its own published cases | #13 of 18 | 43 | 4 (0 independent) | Moderate confidence | Market credibility 0 of 5 |
| Mobile Backend and API Integration · Phoenixon its own published cases | #38 of 65 | 37 | 4 (0 independent) | Moderate confidence | Market credibility 0 of 5 |
| Flutter Development · New Yorkon its own published cases | #7 of 10 | 43 | 3 (0 independent) | Moderate confidence | Market credibility 0 of 5 |
| Flutter Development · Chicagoon its own published cases | #12 of 26 | 38 | 3 (0 independent) | Moderate confidence | Market credibility 0 of 5 |
| Flutter Development · Miamion its own published cases | #14 of 26 | 38 | 3 (0 independent) | Moderate confidence | Market credibility 0 of 5 |
| Flutter Development · Houstonon its own published cases | #15 of 26 | 38 | 3 (0 independent) | Moderate confidence | Market credibility 0 of 5 |
| Flutter Development · Phoenixon its own published cases | #11 of 26 | 38 | 3 (0 independent) | Moderate confidence | Market credibility 0 of 5 |
| Flutter Development · Los Angeleson its own published cases | #13 of 26 | 38 | 3 (0 independent) | Moderate confidence | Market credibility 0 of 5 |
| Mobile MVP Development · New Yorkon its own published cases | #9 of 11 | 41 | 2 (0 independent) | Moderate confidence | Market credibility 0 of 5 |
| Mobile MVP Development · Chicagoon its own published cases | #16 of 25 | 35 | 2 (0 independent) | Moderate confidence | Market credibility 0 of 5 |
| Mobile MVP Development · Houstonon its own published cases | #17 of 25 | 35 | 2 (0 independent) | Moderate confidence | Market credibility 0 of 5 |
| Mobile MVP Development · Miamion its own published cases | #15 of 25 | 35 | 2 (0 independent) | Moderate confidence | Market credibility 0 of 5 |
| Mobile MVP Development · Phoenixon its own published cases | #15 of 25 | 35 | 2 (0 independent) | Moderate confidence | Market credibility 0 of 5 |
| Mobile MVP Development · Los Angeleson its own published cases | #16 of 25 | 35 | 2 (0 independent) | Moderate confidence | Market credibility 0 of 5 |
Fit and geography
- Headquarters
- Dallas, TX, USAAgency's own words
- Service regions
- New York, TX, USAVendar profile field
- Client types
- not statedVendar profile field
- Industries
- not statedVendar profile field
- Named clients in confirmed proof
- Natalia Gomez, GunLox, Greenaider, Fireflies, Ship It Pro, VowTimer, Penn.AI, EthnometIndependent source or agency, see the claims list
Only rows marked “Verified by Vendar” were checked. Rankings place an agency in a city by headquarters or by documented work for clients there, never by a service region alone.
Pricing in fullNot disclosed
- Model
- not disclosed
- Minimum monthly budget
- not disclosed
- Project minimum
- not disclosed
- Hourly rate
- not disclosed
- Typical range
- not disclosed
- Minimum term
- 1 month (month to month)
- Setup fee
- not disclosed
- Engagement models
- not stated
Source: Not disclosed. Every figure above is the agency's published number; a row marked not disclosed has no published figure.
Median disclosed monthly floor in each ranking: Android App Development n/a (0 of 13 disclose) · React Native Development $299 (2 of 24 disclose) · Flutter Development n/a (0 of 10 disclose) · Android App Development $2,650 (5 of 30 disclose) · Android App Development $2,650 (5 of 30 disclose) · Android App Development $2,650 (5 of 30 disclose) · Mobile MVP Development $20,000 (1 of 11 disclose) · Android App Development $2,650 (5 of 30 disclose) · React Native Development $299 (2 of 24 disclose) · React Native Development $299 (2 of 24 disclose) · Flutter Development $299 (2 of 26 disclose) · Mobile Backend and API Integration n/a (0 of 18 disclose) · React Native Development $299 (2 of 24 disclose) · Flutter Development $299 (2 of 26 disclose) · Flutter Development $299 (2 of 26 disclose) · Mobile MVP Development $20,000 (2 of 25 disclose) · Mobile MVP Development $20,000 (2 of 25 disclose) · Mobile Backend and API Integration $5,000 (8 of 65 disclose) · Android App Development $2,650 (5 of 30 disclose) · React Native Development $299 (2 of 24 disclose) · React Native Development $299 (2 of 24 disclose) · Flutter Development $299 (2 of 26 disclose) · Flutter Development $299 (2 of 26 disclose) · Mobile MVP Development $20,000 (2 of 25 disclose) · Mobile MVP Development $20,000 (2 of 25 disclose) · Mobile MVP Development $20,000 (2 of 25 disclose)
Reputation
- Google5 · 2 reviews
- Trustpilot4 · 3 reviews
How it counts: 5 third-party reviews at 4.4. Ratings say nothing about work on a specific need and never count as evidence for it.
- Awards
- none on file
- Certifications
- none on file
Company and process
- Founded
- 2018Agency's own words
- Team size
- 51-200Agency's own words
- Languages
- not statedVendar profile field
- Services
- Mobile DevelopmentVendar profile field
- Technologies
- not statedVendar profile field
- Workflow
- not documentedAgency's own words
- Onboarding
- not documentedAgency's own words
- Reporting
- not documentedAgency's own words
Company fields come from the vendor profile; only fields with status verified were checked by Vendar.
How confidence is computedModerate confidence
- Confidence
- Moderate confidence, 78 of 100
- Evidence posture
- adequate: Usable as shortlist context: 2 of 46 documented work claims come from independent sources; check the sources before outreach.
- Capped by
- Rated from the evidence on file (sources, independence, confirmed quotes), not by an editor.
- Best position confidence
- Confidence not rated yet
It starts from the data completeness and source reliability of the profile, and is capped when independent proof of work is thin. The next level is High confidence. One independent claim with a measured result for the best-ranked need is the fastest way up.
- Who the company is: website, headquarters, founding year, team size, logo, regions served20/20
- Fit: services, industries, client types: industries, client types5/15
- Commercial terms: model, entry price, hourly rate, minimum term, setup fee: model, entry price, hourly rate, setup fee3/20
- Documented work: cases naming a client and a result (target 5) and work claims overall (target 10): 0 cases with a named client and a result, 46 work claims10/30
- Reputation: rating and review count on two or more platforms, each with 10 or more reviews: 0 platforms with a rating and 10 or more reviews; Google, Trustpilot: too few reviews to count0/15
- Who is speaking: independent sources among work claims (full marks at 40%): 2 of 46 work claims are independent3/30
- Checked against the source page: confirmed, or half for partly confirmed: 46 confirmed, 0 partly, of 48 with a source24/25
- Numbers backed by a verbatim quote from the source: 0 of 020/20
- Seen within the last 365 days: 46 of 4814/15
- Not contradicted: claims their source no longer supports: 0 not supported by their page10/10
These two scores describe the profile itself and never change a position.
Limits and how to correct them
- Pricing not disclosed; budget fit cannot be checked before outreach.
- Never verified against official sources.
- Profile below decision-ready status: the profile is collected but not reviewed yet.
- Usable as shortlist context with a caveat: 2 of 46 documented work claims come from independent sources; the rest are the agency's own account or sources it controls.
- 2 of 46 documented work claims come from independent sources; the rest are the agency's own account or sources it controls.
- Best position rests on: Confirmed by an independent source.
- 44 of 48 claims on file are the agency's own words or sources it controls; 4 come from an independent source.
- Open: Price signal disclosed (not disclosed; asked in Before you sign)
- Open: Three strongest proofs name a client and a measured, dated result (0 of 3)
- Open: Every claim has an observation date (46 of 48)
- Open: Strongest proofs are recent and delivered (2 of 3 within 3 years and with results in)
- Open: At least a third of documented work comes from independent sources (2 of 46 work claims)
Machine-readable version
This section carries the same data that AI assistants receive.
- Schema
- vendar.ai.vendor-summary.v1
- Model
- Evidence-weighted ranking 2026.11.7
- Data as of
- Nov 2, 2026
- Generated
- Verification
- Not verified
- Sources checked
- not yet
- Citation readiness
- Cite with the source context
- Do not infer headquarters from service-area coverage.
- Do not treat paid visibility as organic ranking proof.
- Do not present a source-thin profile as independently verified.
Describe what you need. The request is saved in Vendar first, then routed from there.