Admitted to a ranking on documented work, outside the top three for every question it appears in. None of its 33 documented work claims comes from an independent source.
Best position #5 Mobile Backend and API Integration in Los Angeles, of 12 · also in 2 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.
on Google5.0/53 reviews as of Nov 2, 2026Trustpilot4.0/55 reviews- 50% written in the last 12 months
- 13% rate it 3 stars or lower
- 0% of Google reviews answered
Most clients praise App Maisters for their communication, professionalism, and ability to deliver working apps. A few reviews mention timeline delays, and one review severely criticizes the code quality. The majority of reviews are positive, with several clients reporting concrete results.More
- Quality of final product6
- Professionalism and collaboration5
- Communication and responsiveness4
- Understanding client vision3
- Efficiency and productivity2
“the final product works smoothly”
Show 4 more quotesHide quotes
“Overall, they were professional and great to collaborate with.”
“They have been supportive and responsive as we worked through any issues that arose with the app throughout the process.”
“Their team really listened to our vision and kept me updated every week.”
“What we’ve gotten done in two months is much more than what we’ve gotten done in a year with other developers.”
- Timeline delays2
“the actual app launch was not on the timeline we pre-established”
Show 2 more resultsHide results
- Mobile app development2
- Android app development2
- Custom app development1
- Native mobile app development1
- Banking app development1
- Travel app development1
- Bank
- University
- Non-profit
- Municipality
- Startup
- Developer
Show 6 named client quotesHide named client quotes
“To build an app within the time required, we knew that outsourcing the development made sense for us. We wanted to tap a company that had a good reputation and which we felt could deliver a quality project in a timely fashion. We discovered App Maisters and felt confident of their capabilities after an extensive due diligence process.”
“App Maisters designed and developed native mobile applications on both iOS and Android platforms, integrated with the university's database:”
“Enabled students to access study materials anytime and anywhere Improved continuity in learning for students who miss classes Streamlined administrative processes for event scheduling and registrations”
“App Maisters collaborated with ONIE to develop a mobile app for vendors at farmers’ markets across Oklahoma. The platform digitizes transactions, provides sales insights, and streamlines reporting, improving efficiency for both vendors and market managers.”
“Faster, smoother transactions with reduced waiting times”
“Thus far into the development, App Maisters Inc. has professionally addressed all bugs and issues within the app. The team has also driven the project through proper delegation and well-structured communication channels. They’re responsive and able to map out what is needed for the development. What we’ve gotten done in two months is much more than what we’ve gotten done in a year with other developers.”
- Your business matches the client types on file (startups, enterprises) and the industries on file (healthcare, education, manufacturing).
- You need what reviewers hired it for: Mobile app development (2 of 8 mentions); Android app development (2).
- Read the criticism first: "Timeline delays" (2 of 8 reviews read).
- You need a published price before the first call: nothing is disclosed.
No documented work claim comes from an independent source yet.
- None of the 33 documented work claims comes from an independent source; all are the agency's own account or sources it controls.
- Several commercial terms are not published.
- Ask for the hourly rate, minimum term, setup fee: not published.
- Ask for two client references you can call: no 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.
- #4 Next App50Ranks above on this question#4#5 this oneScore5048Independent00Pricenot disclosednot disclosedModerate confidence · own published cases · Not verified
- #6 AppsNation46Ranks below on this question#6#5 this oneScore4648Independent00Pricenot disclosednot disclosedModerate confidence · own published cases · Not verified
All detailsEverything behind the summary above: the same data the machine feed serves for App Maisters.Open ↓Close ↑
Score by criterion#5 Mobile Backend and API Integration in Los Angeles: 48/100
| Criterion | Weight | Points | Share | What it rests on |
|---|---|---|---|---|
| Evidence for this query | 30 | 13.6 | 45% |
|
| Fit to this query | 25 | 19 | 76% |
|
| Capability depth | 15 | 9.9 | 66% |
|
| Reliability | 10 | 3 | 30% |
|
| Transparencyweakest | 10 | 0 | 0% |
|
| Reputation | 5 | 2.1 | 42% |
|
| Market credibility | 5 | 2.5 | 50% |
|
- -2 Profile below decision-ready status: the profile is collected but not reviewed yet.
All claims in the feed20 of 38 on file · 0 of 33 work claims from an independent source
Who says it, across all 38 claims on file: independent source 4 · linked to the agency 0 · listings the agency writes 1 · agency's own words 33. Independent share of work claims: 0%. 15 distinct source pages.
Claims per need in this feed: Mobile Backend and API Integration 5. The full ledger of 38 is on the proof page.
App Maisters designed and developed native mobile applications on both iOS and Android platforms for CEH, an educational institution, integrated with the university's database so students can access course materials remotely.
Agency's own wordsappmaisters.comclaimed: Recorded as the source states it; not independently confirmed.quote confirmed, checked Nov 1, 2026describes workMobile Backend and API IntegrationQuote from the source page
App Maisters designed and developed native mobile applications on both iOS and Android platforms, integrated with the university's database:
App Maisters was engaged by a Fortune 500 medical device manufacturing company to build a data visualization solution using PowerBI.
Agency's own wordsappmaisters.comclaimed: Recorded as the source states it; not independently confirmed.quote confirmed, checked Nov 1, 2026describes workQuote from the source page
App Maisters was approached by a Fortune 500 company specializing in Medical Device Manufacturing to turn their data into visual information using PowerBI.
App Maisters developed backend APIs for QuickStart, an education and e-learning client, connecting the Sales Enablement module with the Admin Panel so external users could sign in from external sites and sync profile, ratings, and activity data securely to the backend.
Agency's own wordsappmaisters.comclaimed: Recorded as the source states it; not independently confirmed.quote confirmed, checked Nov 1, 2026describes workMobile Backend and API IntegrationQuote from the source page
App Maisters developed backend APIs connecting the Sales Enablement module with the Admin Panel. These APIs enabled users to sign in from external sites while securely relaying their information to the backend systems.
App Maisters and Gas Emission Firm developed an Android tablet app for emissions monitoring that provides real-time environmental data.
Agency's own wordsappmaisters.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
App Maisters and Gas Emission Firm innovate emissions monitoring with an intuitive Android Tablet App, providing real-time environmental data for informed decision-making.
App Maisters built the Hawaii Revealed app, which offers audio tours, real-time updates, and offline functionality.
Agency's own wordsappmaisters.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
Discover Hawaii with the Hawaii Revealed app by AppMaisters, offering audio tours, real-time updates, and offline functionality for an enriched and sustainable travel experience.
App Maisters' Student Quiz Management Platform for the Astros Foundation provided real-time analytics that empowered educators and parents.
Agency's own wordsappmaisters.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
After implementation, the platform achieved: 🔹 Real-time analytics empowered educators and parents
App Maisters developed a mobile app for ONIE for vendors at farmers' markets across Oklahoma; the app digitizes transactions, provides sales insights, and streamlines reporting for vendors and market managers.
Agency's own wordsappmaisters.comclaimed: Recorded as the source states it; not independently confirmed.quote confirmed, checked Nov 1, 2026describes workQuote from the source page
App Maisters collaborated with ONIE to develop a mobile app for vendors at farmers’ markets across Oklahoma. The platform digitizes transactions, provides sales insights, and streamlines reporting, improving efficiency for both vendors and market managers.
The ONIE EBT Mobile App delivered faster, smoother transactions with reduced waiting times.
Agency's own wordsappmaisters.comclaimed: Recorded as the source states it; not independently confirmed.quote confirmed, checked Nov 1, 2026describes workQuote from the source page
Faster, smoother transactions with reduced waiting times
The ONIE EBT Mobile App delivered increased efficiency through faster, smoother transactions with reduced waiting times.
Agency's own wordsappmaisters.comclaimed: Recorded as the source states it; not independently confirmed.quote confirmed, checked Nov 2, 2026describes workQuote from the source page
Increased Efficiency: Faster, smoother transactions with reduced waiting times
App Maisters built a poisonous plant directory platform for the USDA's Poisonous Plant Research Laboratory, a federal agency investigating poisonous plants and their toxins.
Agency's own wordsappmaisters.comclaimed: Recorded as the source states it; not independently confirmed.quote confirmed, checked Nov 2, 2026describes workQuote from the source page
Poisonous Plant Directory Platform for USDA, The Poisonous Plant Research Laboratory, a federal agency under the United States Department of Agriculture (USDA), is dedicated to investigating poisonous plants and their toxins.
After implementation, the platform achieved a 30% increase in student reading engagement.
Agency's own wordsappmaisters.comclaimed: Recorded as the source states it; not independently confirmed.quote confirmed, checked Nov 1, 2026describes workQuote from the source page
After implementation, the platform achieved: 🔹 30% increase in student reading engagement
App Maisters developed an Online Banking App with ShareOne and supported over 60+ Credit Unions throughout the US.
Agency's own wordsappmaisters.comclaimed: Recorded as the source states it; not independently confirmed.quote confirmed, checked Nov 1, 2026describes workQuote from the source page
App Maisters has joined forces with ShareOne to develop an Online Banking App and supported over 60+ Credit Unions through out the US.
The CTO of Share One said they chose App Maists for outsourced app development after an extensive due diligence process, confident in their ability to deliver a quality project in a timely fashion.
Agency's own wordsappmaisters.comclaimed: Recorded as the source states it; not independently confirmed.quote confirmed, checked Nov 1, 2026describes workQuote from the source page
To build an app within the time required, we knew that outsourcing the development made sense for us. We wanted to tap a company that had a good reputation and which we felt could deliver a quality project in a timely fashion. We discovered App Maisters and felt confident of their capabilities after an extensive due diligence process.
App Maists collaborated with USDA officials to develop a hybrid iOS/Android mobile application for farmers and citizens, providing access to poisonous plant data with a custom CMS for administrator content control.
Agency's own wordsappmaisters.comclaimed: Recorded as the source states it; not independently confirmed.quote confirmed, checked Nov 1, 2026describes workQuote from the source page
App Maisters collaborated with USDA officials to develop a hybrid iOS/Android mobile application for farmers and citizens. The app empowers users with instant access to poisonous plant data while providing administrators with full content control through a custom CMS.
The CEH App case study reports that the mobile apps enabled students to access study materials anytime and anywhere, improved learning continuity for students who miss classes, and streamlined administrative processes for event scheduling and registrations.
Agency's own wordsappmaisters.comclaimed: Recorded as the source states it; not independently confirmed.quote confirmed, checked Nov 1, 2026describes workQuote from the source page
Enabled students to access study materials anytime and anywhere Improved continuity in learning for students who miss classes Streamlined administrative processes for event scheduling and registrations
App Maisters developed an app for Diamond Oilfield Technologies, an Ohio-based service provider, to manage their water disposal and water management services.
Agency's own wordsappmaisters.comclaimed: Recorded as the source states it; not independently confirmed.quote confirmed, checked Nov 1, 2026describes workQuote from the source page
Diamond Oilfield Technologies, an Ohio-based service provider, wanted an app to efficiently manage their water management services.
App Maisters designed and developed a sports-themed quiz platform combining gamification, education, and analytics.
Agency's own wordsappmaisters.comclaimed: Recorded as the source states it; not independently confirmed.quote confirmed, checked Nov 1, 2026describes workQuote from the source page
App Maisters designed and developed a sports-themed quiz platform combining gamification, education, and analytics.
App Maisters developed a fully customized online banking application.
Agency's own wordsappmaisters.comclaimed: Recorded as the source states it; not independently confirmed.quote confirmed, checked Nov 1, 2026describes workQuote from the source page
App Maisters developed a fully customized online banking application designed to streamline financial operations and enhance user experience.
App Maisters designed and developed a digital wellness platform for the Texas A&M AgriLife Institute for Advancing Health through Agriculture's Strong Hearts initiative, including a user mobile app and a staff web app compliant with HIPAA-PHI standards.
Agency's own wordsappmaisters.comclaimed: Recorded as the source states it; not independently confirmed.quote confirmed, checked Nov 1, 2026describes workQuote from the source page
App Maisters designed and developed a comprehensive solution including a user mobile app and a staff web app. The platform prioritizes intuitive navigation, data security, and compliance with HIPAA-PHI standards.
A project manager on the Environment Monitoring Drone App project said App Maisters professionally addressed all bugs and issues, and that what was done in two months was more than what was done in a year with other developers.
Agency's own wordsappmaisters.comclaimed: Recorded as the source states it; not independently confirmed.quote confirmed, checked Nov 1, 2026describes workQuote from the source page
Thus far into the development, App Maisters Inc. has professionally addressed all bugs and issues within the app. The team has also driven the project through proper delegation and well-structured communication channels. They’re responsive and able to map out what is needed for the development. What we’ve gotten done in two months is much more than what we’ve gotten done in a year with other developers.
Positions in every ranking3 rankings
3 positions: 3 where a claim on file names the need, 0 listed on offer only. The top 3 by evidence first; the rest open below.
| Ranking | Rank | Score | Claims for the need | Confidence | Weakest criterion |
|---|---|---|---|---|---|
| Mobile Backend and API Integration · Los Angeleson its own published cases | #5 of 12 | 48 | 5 (0 independent) | Moderate confidence | Transparency 0 of 10 |
| Mobile Backend and API Integration · Houstonon its own published cases | #5 of 13 | 45 | 5 (0 independent) | Moderate confidence | Transparency 0 of 10 |
| Mobile Backend and API Integration · Phoenixon its own published cases | #27 of 65 | 39 | 5 (0 independent) | Moderate confidence | Transparency 0 of 10 |
Fit and geography
- Headquarters
- Los Angeles, CA, USAAgency's own words
- Service regions
- Los Angeles, CA, Houston, USAVendar profile field
- Client types
- startup, enterpriseVendar profile field
- Industries
- Healthcare, Education, Manufacturing, Banking, GovernmentVendar profile field
- Named clients in confirmed proof
- CEH, Fortune 500 company specializing in Medical Device Manufacturing, QuickStart, ONIE, Gas Emission Firm, Hawaii Revealed, USDA, Astros FoundationIndependent 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
- not disclosed
- 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: Mobile Backend and API Integration $8,500 (2 of 12 disclose) · Mobile Backend and API Integration n/a (1 of 13 disclose) · Mobile Backend and API Integration $5,000 (8 of 65 disclose)
Reputation
- Google5 · 3 reviews
- Trustpilot4 · 5 reviews
How it counts: 8 third-party reviews at 4.4. Ratings say nothing about work on a specific need and never count as evidence for it.
- Awards
- Under Industry Recognition, the page lists 'Top USA App Developers (2023)'.
- Certifications
- App Maisters states that it maintains ISO 9001 and ISO 27001 certifications.
Company and process
Founding year, team size and working process are not disclosed.
- Founded
- not disclosedNot disclosed
- Team size
- not disclosedNot disclosed
- 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 computedLower confidence
- Confidence
- Lower confidence, 62 of 100
- Evidence posture
- thin: No independent source documents this vendor's work; treat it as a candidate only.
- Capped by
- Rated from the evidence on file (sources, independence, confirmed quotes), not by an editor.
- Best position confidence
- Moderate confidence
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 Moderate 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 served: founding year, team size, logo10/20
- Fit: services, industries, client types15/15
- Commercial terms: model, entry price, hourly rate, minimum term, setup fee: model, entry price, hourly rate, minimum term, setup fee0/20
- Documented work: cases naming a client and a result (target 5) and work claims overall (target 10): 1 cases with a named client and a result, 33 work claims14/30
- 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%): 0 of 33 work claims are independent0/30
- Checked against the source page: confirmed, or half for partly confirmed: 36 confirmed, 0 partly, of 38 with a source24/25
- Numbers backed by a verbatim quote from the source: 1 of 120/20
- Seen within the last 365 days: 36 of 3814/15
- 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
- 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: the profile is collected but not reviewed yet.
- Use as a caveated candidate only: no independent source documents this vendor's work.
- None of the 33 documented work claims comes from an independent source; all are the agency's own account or sources it controls.
- Best position rests on: Published by the agency on its own site.
- 34 of 38 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 (36 of 38)
- Open: At least a third of documented work comes from independent sources (0 of 33 work claims)
- Open: Founding year, team size and headquarters on file (founding year missing, team size missing)
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
- Candidate only, with a caveat
- 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.