Maestro - Painless Mobile UI Testing
Test like a user, not a machine
Maestro is a modern mobile testing tool that eliminates flakiness and complex setup known from Appium. We use it to ensure the highest quality of our React Native applications.
When is Maestro the perfect fit?
Maestro is ideal for projects where iteration speed and test reliability are crucial.
- React Native apps requiring frequent regression testing
- When we want tests written in a readable YAML format
- Projects where classic UI tests (Appium) were too flaky and slow
- For teams implementing Continuous Delivery (CI/CD) in mobile apps
When to consider other solutions?
Despite its advantages, Maestro does not cover 100% of testing use cases.
- Web applications (Maestro focuses exclusively on mobile iOS/Android)
- Unit testing of business logic (we use Jest for that)
- Specific, deep testing of native platform components requiring Espresso or XCUITest
Testing Approach with Maestro
Maestro works from the outside, seeing the app exactly as a user would.
Declarative Flows
Tests are written in simple YAML files that describe user steps step-by-step (e.g. "tap on button", "input text").
Built-in Resilience (Auto-wait)
Maestro automatically waits for elements to appear on the screen. No need to write hardcoded sleeps.
Reliability and Release Confidence
UI tests with Maestro ensure that the app will work on end-devices after an update.
Black-box Integration Testing
The app runs entirely on a real simulator, guaranteeing verification of the whole tech stack.
Speed and CI Integration
Maestro was designed with immediate developer feedback in mind.
Lightning-fast startup and iteration
Running a single test takes seconds, and changes can be tested almost in real-time using Maestro Studio.
Maestro Cloud / CI
Seamless execution of tests in the cloud (Maestro Cloud) on pull requests.
Implementing Maestro in GMI Processes
How do we use Maestro daily when delivering apps?
Core flows coverage
First, we cover the most important paths (e.g., registration, checkout, login).
PR Automation
Before merging any code, Maestro tests run automatically to verify we haven't broken existing features.
Frequently Asked Questions
Why Maestro instead of Appium or Detox?
Maestro drastically lowers the entry barrier to test automation. Appium is heavy to configure and slow. Detox is faster than Appium but hard to maintain for React Native. Maestro works out-of-the-box and has no flaky tests thanks to its smart auto-wait mechanism.
Want to use this technology in your project?
Contact us to discuss how we can help with your project.
Let's talk
about the project.
Have an app idea or need technological support? Write to us — we'll prepare a preliminary analysis and estimate within 48h. Projects that go through our DDT process (Discovery, Design & Technology) come with a price guarantee and a fixed-price agreement — a key differentiator for us.
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