Apps We Test

Mobile Apps Testing

Mobile testing has two dimensions most non-mobile QA teams underestimate: device fragmentation (Android especially) and field conditions (low bandwidth, intermittent GPS, low storage, drained battery). Both bite production hard if test coverage skips them. The pages below break down the platforms and app categories we cover, the real tools we use on each, and where the failure modes actually live in production.

iOS

iOS testing combines XCTest (unit and integration testing inside Xcode) and XCUITest (UI automation) for native depth, with Appium where cross-platform regression coverage justifies the abstraction. Real-device coverage uses BrowserStack and Sauce Labs cloud labs covering current and N-2 iOS versions. CI integration via the customer's chosen pipeline (GitHub Actions, GitLab, Bitbucket Pipelines, Jenkins).

Comprehensive iOS Testing Services

iOS applications require specialised testing approaches to ensure they work flawlessly across different Apple devices, iOS versions, and screen sizes. Our comprehensive iOS testing services cover all aspects of quality assurance, from functional testing to performance optimisation.

Testing Methodologies and Tools

  • XCTest Framework:Native iOS testing framework for unit and UI testing, ensuring your app meets Apple's quality standards.
  • Appium: Cross-platform automation tool that enables testing across multiple devices and iOS versions simultaneously.
  • TestRail: Comprehensive test management platform for organising, tracking, and reporting on iOS test cases and results.
  • Device Testing: Real device testing across iPhone and iPad models to ensure compatibility and optimal user experience.

Quality iOS apps don't just happen—they're thoroughly tested. Our expert iOS testing services help you identify and fix issues before they reach your users, ensuring a seamless experience that drives app store success.

What We Test

  • Functional testing across all iOS versions
  • UI/UX testing for different device sizes
  • Performance and load testing
  • Security and data protection
  • App Store compliance and guidelines
  • Integration with iOS services (iCloud, Apple Pay, etc.)

For iOS, our default automation stack is XCUITest for native depth plus Appium where cross-platform regression coverage is needed. Real-device coverage runs on BrowserStack and Sauce Labs cloud labs covering current and N-2 iOS versions. CI integration via GitHub Actions, GitLab, Bitbucket Pipelines, or Jenkins depending on the customer's stack.

Android

Android coverage starts with Espresso for native UI automation and Appium for cross-platform regression. Real-device testing runs on BrowserStack and Sauce Labs cloud labs across current and N-2 Android versions, supplemented by their physical-device fleets for low-battery and degraded-network scenarios. The fragmentation reality means we plan device matrices around target audience usage data, not vendor flagship lists.

Comprehensive Android Testing Solutions

Android applications face unique challenges due to the platform's diversity in devices, screen sizes, and OS versions. Our comprehensive Android testing services ensure your app works flawlessly across this vast ecosystem, from budget smartphones to flagship devices.

Advanced Testing Tools and Frameworks

  • Espresso:Google's native testing framework for Android UI automation, providing fast and reliable UI testing capabilities.
  • Appium: Cross-platform automation tool that enables testing across multiple Android devices and versions, reducing testing time and effort.
  • Robotium: Powerful Android testing framework for functional and system testing, ideal for complex Android applications.
  • Device Farm Testing: Testing across a wide range of Android devices to ensure compatibility and optimal performance.

Our Android Testing Services

  • Unit Testing: Early bug detection through comprehensive unit test coverage, ensuring code quality from the ground up.
  • UI Automation: Automated UI testing to verify user interactions, workflows, and visual elements across different screen sizes.
  • Compatibility Testing: Testing across different Android versions, device manufacturers, and screen resolutions to ensure universal compatibility.
  • Performance Testing: Identifying bottlenecks and optimising app performance for smooth user experience.

Our Android testing expertise helps you deliver high-quality apps that perform consistently across the diverse Android ecosystem. We identify bugs early in the development lifecycle, saving time and resources while ensuring your app meets the highest quality standards.

Hybrid

Brainstack Technologies offers expert quality assurance services. We're pros at testing hybrid apps built with React Native, Ionic, and other popular frameworks. We use tools like Appium, Selenium, and Cypress to check your app's functionality and performance on different devices and platforms. From functional testing to performance tuning, we'll help you deliver a stellar user experience.

Expert Hybrid App Testing

Hybrid applications combine web technologies with native capabilities, offering the best of both worlds. However, they require specialised testing approaches to ensure they work seamlessly across different platforms. Our expert hybrid app testing services cover all popular frameworks and platforms.

Frameworks We Test

  • React Native: Comprehensive testing for React Native applications, ensuring cross-platform consistency and performance.
  • Ionic: Testing Ionic-based hybrid apps for functionality, performance, and native feature integration.
  • Flutter: Quality assurance for Flutter applications, ensuring smooth performance across iOS and Android.
  • .NET MAUI / Xamarin: Testing .NET MAUI apps (and legacy Xamarin codebases) for cross-platform compatibility and native feature integration on iOS, Android, macOS, and Windows.

Testing Tools and Methodologies

  • Appium: Cross-platform automation tool perfect for hybrid apps, enabling testing across multiple devices and platforms.
  • Selenium: Web-based testing framework for testing the web components of hybrid applications.
  • Cypress: Modern end-to-end testing framework for web and hybrid applications, providing fast and reliable test execution.
  • Platform-Specific Testing: Ensuring native features work correctly on both iOS and Android platforms.

Hybrid apps offer the advantage of code reusability, but they need thorough testing to ensure they deliver native-like experiences on both platforms. Our comprehensive testing approach ensures your hybrid app performs flawlessly everywhere.

Comprehensive Testing Coverage

  • Functional testing across iOS and Android
  • Performance testing and optimisation
  • Native feature integration testing
  • Cross-platform consistency verification
  • Device and OS version compatibility
  • UI/UX testing for platform-specific guidelines

Our hybrid app testing expertise ensures your application delivers a stellar user experience across all platforms. From functional testing to performance tuning, we help you identify and resolve issues before they impact your users.

PWAs

PWAs need testing love, too! Brainstack Technologies can help ensure your Progressive Web App is firing on all cylinders. We use tools like Lighthouse, WebPageTest, and Chrome DevTools to check performance, accessibility, and offline functionality. We'll help you deliver a smooth, engaging user experience across all devices.

Progressive Web App Testing Excellence

Progressive Web Apps (PWAs) combine the best features of web and mobile applications, offering app-like experiences through web technologies. Testing PWAs requires a unique approach that covers web performance, mobile functionality, and offline capabilities.

Advanced PWA Testing Tools

  • Lighthouse:Google's automated tool for auditing PWA performance, accessibility, best practices, and SEO, ensuring your app meets industry standards.
  • WebPageTest: Comprehensive performance testing tool that analyses PWA load times, rendering, and user experience metrics across different networks and devices.
  • Chrome DevTools: Advanced debugging and testing tools for analysing PWA performance, service worker functionality, and offline capabilities.
  • PWA Testing Suites: Specialised testing frameworks for verifying PWA-specific features like service workers, manifest files, and installability.

PWA Testing Focus Areas

  • Performance Testing: Ensuring fast load times, smooth animations, and optimal performance across different network conditions.
  • Accessibility Testing: Verifying that PWAs are accessible to all users, including those with disabilities, following WCAG guidelines.
  • Offline Functionality: Testing service worker implementation and offline capabilities to ensure apps work without internet connectivity.
  • Cross-Device Testing: Ensuring PWAs work seamlessly across smartphones, tablets, and desktop browsers.
  • Installability: Verifying that PWAs can be installed on devices and provide app-like experiences.

PWAs represent the future of web applications, offering native app experiences through web technologies. Our comprehensive testing ensures your PWA delivers exceptional performance, accessibility, and user engagement across all devices and platforms.

Our offline-first PWA work for a US-based sustainability leader — sync queue conflict resolution, IndexedDB storage limits across browsers, GPS-flake handling, service-worker caching strategies — is a representative example of where field-condition test coverage matters most for PWAs. The bug that ships isn't the one caught in the dev lab. It's the one that surfaces at sub-3G coverage in a rural commodity-buying station.

Want mobile test coverage that catches the field-condition bugs?

Two ways in: book a 30-minute discovery call (better for CXOs scoping a project) or request a written test-strategy review of your current setup (better for CTOs and engineering leads who want a second opinion). Both are no-obligation.

For mobile-specific projects, we'll cover device-matrix planning, automation stack selection (Appium vs native XCUITest/Espresso vs Maestro), and cloud-lab strategy in the first conversation.