I have an APK that I finished coding but have not been able to run through real-world checks because my current device is outdated. I need solid, actionable feedback on its overall performance when installed on modern Android smartphones. Here is what I expect from you: • Install the APK on at least one recent, mainstream smartphone model. • Use it as an everyday user would for a short session, paying attention to loading times, responsiveness, and any lag during navigation or feature use. • Note temperature spikes, frame drops, or crashes if they occur, and capture logs or screen recordings where helpful. • Summarise your findings in a concise report, highlighting any critical issues first and suggesting optimisation ideas where obvious. If you can replicate on multiple phone models or Android versions, even better, but a single well-documented test run on a popular device is enough for me to move forward. Looking forward to your insights.