I have a production-ready mobile application available on both iOS and Android, and I need solid, data-driven insight into how it performs under real-world conditions. Your task is limited to performance testing only—functionality and UI have already been validated—so every hour you spend should focus on speed, stability, resource usage, and any bottlenecks that could degrade the user experience. Here is what I expect: • A clear test plan covering device matrices, network scenarios (Wi-Fi, 4G/5G, offline), and workload patterns you will simulate. • Instrumented tests using the tools you prefer—XCode Instruments, Android Profiler, Firebase Performance, Charles, JMeter, or similar—so long as the metrics are reproducible. • A concise report that highlights start-up time, screen-to-screen latency, CPU / memory / battery footprints, and any crashes or ANR events, with logs and screenshots attached. • Actionable recommendations ranked by severity and estimated effort to fix. I will grant access to the current TestFlight build and the Android beta track as soon as we agree on the schedule. If you have device farms or cloud testing accounts, let me know; otherwise I can supply a limited set of physical devices for spot checks. I look forward to seeing your plan, the toolset you intend to use, and a realistic turnaround time.