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[Skip to main content](https://blogs.finalrun.app/spec-driven-testing-for-mobile-apps-preparing-for-open-source-soon#main-content) [Hashnode](https://hashnode.com/?utm_source=https%3A%2F%2Fblogs.finalrun.app&utm_medium=referral&utm_campaign=blog_header_logo&utm_content=logo)[Finalrun](https://blogs.finalrun.app/ "Finalrun") Open search (press Control or Command and K)Toggle themeOpen menu [Hashnode](https://hashnode.com/?utm_source=https%3A%2F%2Fblogs.finalrun.app&utm_medium=referral&utm_campaign=blog_header_logo&utm_content=logo) [Finalrun](https://blogs.finalrun.app/ "Finalrun") Open search (press Control or Command and K) Toggle theme[](https://hashnode.com) ## Command Palette Search for a command to run... # Spec-Driven Testing for Mobile apps (Preparing for Open Source Soon) PublishedMarch 16, 2026 •5 min read [F](https://hashnode.com/@finalrun) [Finalrun](https://hashnode.com/@finalrun) [](https://x.com/arny_laishram)[](https://www.linkedin.com/in/arnold-laishram/) [ Part of seriesSpec Driven Testing ](https://blogs.finalrun.app/series/announcing-opensource) On this page [1. The Nightmare of Mobile Testing](https://blogs.finalrun.app/spec-driven-testing-for-mobile-apps-preparing-for-open-source-soon#1-the-nightmare-of-mobile-testing)[2. Why Are Tests So Brittle?](https://blogs.finalrun.app/spec-driven-testing-for-mobile-apps-preparing-for-open-source-soon#2-why-are-tests-so-brittle)[3. The Solution: Spec-Driven Testing with Finalrun](https://blogs.finalrun.app/spec-driven-testing-for-mobile-apps-preparing-for-open-source-soon#3-the-solution-spec-driven-testing-with-finalrun)[4. The Human Bottleneck](https://blogs.finalrun.app/spec-driven-testing-for-mobile-apps-preparing-for-open-source-soon#4-the-human-bottleneck)[5. AI "Skills" to the Rescue](https://blogs.finalrun.app/spec-driven-testing-for-mobile-apps-preparing-for-open-source-soon#5-ai-skills-to-the-rescue)[6. How the generate-test-spec Skill Works](https://blogs.finalrun.app/spec-driven-testing-for-mobile-apps-preparing-for-open-source-soon#6-how-the-generate-test-spec-skill-works)[7. Running the Magic](https://blogs.finalrun.app/spec-driven-testing-for-mobile-apps-preparing-for-open-source-soon#7-running-the-magic)[🚀 Be the First to Try It: We Are Going Open Source!](https://blogs.finalrun.app/spec-driven-testing-for-mobile-apps-preparing-for-open-source-soon#be-the-first-to-try-it-we-are-going-open-source) Finalrun introduces spec-driven, vision-based mobile testing to dramatically reduce flaky UI tests. Open source release coming soon. TL;DR Mobile UI tests are brittle. We built a spec-driven QA Agent that: > runs plain-English test specs, > “sees” the app visually (like a human), and > uses code-aware AI skills to auto-generate and maintain robust specs as your code grows. We’re open-sourcing the agent soon [Notify me when it's open source →](https://docs.google.com/forms/d/1EwHjqK6t1pBQgsKWih1Z_hQqP837elhl7hVbUGLHqV0) Quick overview of how this works right now. ### 1. The Nightmare of Mobile Testing If you’ve ever worked on a mobile app, you know the pain of automated UI testing. You write a perfectly good test on Monday. On Tuesday, it fails. You check the app—everything works fine. This is the dreaded **"flaky test."** It’s a test that fails not because your app is broken, but because the test itself is confused. Flaky tests destroy trust in your QA process, slow down releases, and turn automation into a massive headache. ### 2. Why Are Tests So Brittle? The root of the problem lies in how traditional mobile tests are built. Historically, we write tests that act like rigid robots blindly following a map. We tell the code, _"Wait exactly 3 seconds, then click the element with the exact hidden ID of 'button_xyz_123'."_ But mobile apps are dynamic. What if the network is slow and the page takes 4 seconds to load? What if a developer slightly changes the layout, or renames that hidden ID? The app still works perfectly for a human user, but the "robot" test crashes immediately. Because of this, **test maintenance becomes a full-time job.** Teams end up spending more time fixing broken tests than actually building new features. ### 3. The Solution: Spec-Driven Testing with Finalrun What if we stopped writing rigid code and started writing tests the way humans actually talk? Enter **Spec-Driven Testing** powered by the **Finalrun QA Agent**. Instead of writing complex automation scripts, you write a "Specification" (or Spec) in plain, simple text. Your test file literally looks like this: * _Tap on "Settings"_ * _Tap on "Language"_ * _Search for "Spanish"_ * _Verify that "Español" appears on the screen._ The Finalrun QA Agent reads these plain-English instructions and interacts with the app visually, exactly like a human would. It doesn't care about hidden code IDs. If a button moves slightly to the left, the Agent still sees it and taps it. By shifting from rigid code to human-readable specs, the tests become incredibly stable and easy to read