My Android application needs a thorough quality sweep that covers functionality, usability, and performance. The focus is strictly on smartphones, and I want clear evidence that the app behaves flawlessly on Android 10 as well as the very latest preview builds of Android 15 and 16. If you can also verify behaviour on 11 or 12 while you’re at it, that’s a bonus, but the priority is 10, 15, and 16. Here’s how I’d like the engagement to run: • Functional, usability, and performance test suites executed on at least one real device per target OS version (emulators fine for edge-case replication). • Consolidated report that lists each issue with steps to reproduce, expected vs. actual behaviour, severity, device/OS details, screenshots or screen recordings, and raw logs where relevant. • A short summary section outlining overall UX impressions, any performance bottlenecks uncovered, and quick-win recommendations. Acceptance criteria: every defect must include reproducible steps and supporting evidence; performance findings should cite measurable data (CPU, memory, network, start-up time); usability notes must reference specific screens or flows. list all features their working and issues in document file Once I confirm the fixes on my end, we’ll consider the round complete—and I’m open to a follow-up cycle if we decide more depth is needed.