In-game real-time FPS indicator.
Works on opengl/metal apps (typically games).
Therefore it should compatible with iOS>=7.
Configure options from Settings.

Source available at Github

游戏内实时帧数显示
适用opengl/metal程序(主要是游戏)
因此兼容iOS>=7
设置中有一些选项

Updated	December 10, 2020
License	Free Package