I am preparing the next release of my mobile application and am looking for a dedicated QA tester to validate both the iOS and Android builds end to end. The scope of work includes three core areas: • Functional testing – ensuring every feature behaves exactly as specified across a range of real devices. • Usability testing – providing clear, actionable feedback on user experience, navigation flow, and any friction points, especially for first-time users. • Performance testing – identifying issues related to speed, stability, and overall responsiveness. Your task will be to test each release version thoroughly, provide structured feedback, and then re-test once fixes have been implemented to confirm that all reported issues have been resolved.