TakoStats - FPS Perf Overlay is a free Android app developed by Xingchen & Rikka. It is designed for power users who are concerned about the performance of their devices. The app displays selected stats on the screen and can record performance information for the selected applications and present it in graph form.

One of the most significant features of TakoStats is that it does not require root permission with Shizuku. The app provides a comprehensive set of performance metrics, including the framerate of the current app, CPU utilization, CPU frequency, CPU, GPU, battery, and device case temperature (depending on device support), download and upload speed, and more. The app is easy to use and provides a user-friendly interface.

Overall, TakoStats - FPS Perf Overlay is an excellent app for those who want to monitor their device's performance and optimize it for better results.