Mobile App Testing Services

Catch what breaks before your users find it first.

Your app is only as good as what happens when real users tap, swipe, and stress-test it. We run structured QA across iOS and Android so launch day is boring in the best possible way. No surprises. No last-minute rollbacks.

Flutter Appium Manual Testing Android Studio Xcode Postman

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Trusted by companies across the USA

The SIR Group

Mobile App Testing for Your Business

A fintech startup came to us after their app had passed internal review but crashed on Android 11 devices whenever users tried to link a bank account. Their dev team had tested on emulators. The bug only appeared on physical hardware with a specific carrier's network configuration. We caught it in the second day of our device-based testing cycle, traced it to an Appium session timeout interacting with their OAuth redirect, and had a fix path documented before the end of the week. That is the difference between testing as a checkbox and testing as a discipline.

Mobile app testing is the structured process of verifying that your application works correctly across devices, operating systems, screen sizes, network conditions, and real user behaviors. It covers functional testing, where every feature does what it is supposed to do, as well as performance testing, API validation, accessibility checks, and regression coverage when new builds ship. It is not glamorous work, but skipping it costs more than doing it. A single one-star review mentioning a crash can suppress downloads for months.

We have been running QA engagements for mobile products since 2015, covering apps built in Flutter, native Android, and native iOS. Our team works in Android Studio and Xcode for environment-specific debugging, uses Appium for automated test suites, and validates backend behavior through Postman before it ever reaches the device. We work remotely with clients across the US, structured so you see daily test reports and defect logs without needing to schedule a morning meeting at 6 AM your time.

Why Choose Mobile App Testing

Tested on Real Devices

Emulators miss things. We test on physical Android and iOS hardware, which is where carrier-specific bugs, touch latency issues, and permission dialog quirks actually show up.

Automated Regression on Every Build

We build Appium test suites that run against each new release, so a fix in one area does not quietly break something else. You stop discovering regressions from user complaints.

API Testing Before the Device Sees It

We validate your backend endpoints through Postman first. If the API returns an unexpected payload, we find it before the app tries to render it and crashes.

Performance Under Real Conditions

We test on throttled network connections, low-memory states, and battery saver modes because that is how a meaningful share of your users will actually run the app.

Clear Defect Reports You Can Act On

Every bug we log includes steps to reproduce, device details, OS version, and a screen recording. Your dev team does not have to guess what we saw.

Fixed-Price QA Scope

We scope QA engagements as fixed-price projects, not open-ended hourly retainers. You know the cost before we start and you know exactly what gets tested.

Our Mobile App Testing Services

Functional Testing

We verify every user flow, form, and feature against your requirements. If it is supposed to work a certain way, we test it that way and document every deviation.

Cross-Platform Compatibility

iOS and Android behave differently in ways that matter, from gesture handling to background process limits. We test both platforms and flag where behavior diverges unexpectedly.

Automated Test Suite Development

We build Appium-based test suites that run on your CI pipeline so every pull request gets a sanity check without someone manually tapping through the app each time.

API and Integration Testing

Using Postman, we test your backend endpoints directly, including edge cases, error states, and authentication flows, before any UI code touches them.

UI and Accessibility Checks

We review layout behavior across screen sizes and confirm that text contrast, tap target sizes, and screen reader compatibility meet basic accessibility standards.

Regression and Release Testing

Before each release, we run a full regression pass to confirm that the new build did not reintroduce old bugs. This is where most QA processes cut corners. We do not.

How We Deliver Mobile App Testing Projects

No 47-slide proposal deck. No three-month discovery phase. Here is how a project moves from your idea to working software.

Start Your Project
1

Discovery & Planning

We start by reviewing your app, your existing documentation, and any known issues. Then we define the test scope together: which flows are critical, which devices matter most to your users, and what success looks like before we write a single test case.

2

UI/UX Design

For QA engagements, this phase is about mapping the user journeys we will cover. We document the expected behavior for each flow so there is a shared reference when a tester and a developer disagree about whether something is a bug or a feature.

3

Development

We build the test environment, configure Appium for automated runs, set up Postman collections for API validation, and prepare the physical device testing queue. This setup work is what makes the actual testing fast and repeatable.

4

Testing & QA

We run functional, regression, performance, and compatibility tests in parallel. Every defect goes into a shared log with full reproduction details. You can see the defect list in real time, not at the end of a two-week sprint.

5

Launch

Before your app hits the App Store or Google Play, we do a final pre-release pass against the production build, not a staging environment. Store submission requirements and permission declarations get a specific review here.

6

Support & Growth

After launch, we offer ongoing QA retainers for teams shipping updates regularly. This includes automated regression runs on new builds, expanded device coverage as your user base grows, and ad hoc testing when a critical bug report comes in.

Why Choose Aneri Developers

Your Tests Run While You Sleep

We are based in India, which means our QA team is actively running test cycles during your off-hours. You send us a new build at the end of your day and wake up to a defect log with recordings attached.

Operating Since 2015

We have been running QA and development projects for over 11 years across 500+ engagements. The QA processes we use today were built from real failures we observed in earlier projects, not from a textbook.

Same Testers Throughout

The testers who start your project finish it. We do not rotate QA staff mid-engagement because institutional knowledge about your app is what makes regression testing effective.

NDA and Contract from Day One

We sign an NDA and a project contract before any work begins. All test artifacts, reports, and Postman collections we produce belong to you. We retain nothing.

Communication That Fits Your Day

We use Slack for daily updates, Loom for recorded walkthroughs of bugs we find, and Zoom for any calls you want to schedule. Our project manager overlaps with US business hours so questions do not sit unanswered until the next morning.

Clients Across 20+ Countries

We have worked with product teams from the US, UK, Canada, and beyond since 2015. Working remotely across time zones is not new for us; we have the communication structure to make it feel straightforward.

Frequently Asked Questions

Common questions about mobile app testing.

Manual testing is a human tester working through the app the way a real user would, which is how you catch visual glitches, confusing flows, and edge cases that are hard to script. Automated testing with Appium runs scripted scenarios consistently across every new build, which is how you catch regressions fast. We typically use both: manual for exploration and UX judgment, automated for repeatability on known flows.

We use physical devices for the majority of our testing. Emulators in Android Studio and Xcode are useful for quick smoke checks, but bugs tied to hardware acceleration, specific carrier configurations, and background process limits almost never appear on emulators. Real devices are where your users live, so that is where we test.

Yes, and this is actually a common situation for us. You share the build file and any available documentation, and we start from there. We do not need access to your source code to run functional, UI, or API testing, though codebase access can help us trace root causes faster when we find something unusual.

We scope QA projects at a fixed price based on the number of features to test, target devices, and whether you need automated suite development or manual-only testing. You get a clear scope and a number before we start, not a time-and-materials estimate that grows each week. Engagements typically range from a one-time pre-launch audit to an ongoing monthly retainer for teams shipping frequent updates.

A focused pre-launch QA pass for a mid-complexity app usually takes 2 to 3 weeks. Building a full Appium automation suite on top of that adds another 1 to 2 weeks depending on the number of flows we are covering. We will give you a specific timeline estimate once we have reviewed your app and agreed on scope.

Yes. Flutter apps have some quirks in how they render widgets that make standard Appium selectors behave differently than they do on native apps. We have tested Flutter apps specifically enough to know where those gaps are and how to work around them without producing a fragile test suite.

Each bug we log includes the device and OS version it appeared on, the exact steps to reproduce it, what we expected to happen, what actually happened, and a screen recording. We track everything in a shared document or your preferred tool. Vague bug reports waste developer time, so we are specific.

Share your app (a build file or TestFlight/Play Console access), a brief description of the features you want tested, and any existing documentation you have. We will review it and come back within two business days with a proposed scope and a fixed-price quote. No discovery fee for the initial review.

Ready for a pre-launch QA review?

Share your app with us and we will come back with a clear scope, a device coverage plan, and a fixed price within two business days.

Free Consultation
No Commitment
NDA on Day One

Describe Your Project

Include as much detail as you want. We typically reply within 24 hours.

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