Note: As explained in the app this app does not provide GPU or game FPS but Display FPS as provided by android Choreographer. It's very similar to what is available in Dev Option in Android 11 or later. This app was developed before Android 11. A lot of those who left negative reviews didn't read and understand this properly.

Shows a customizable real time display frames per second (FPS) anywhere on screen. You can choose to show it as overlay or in status bar.

A quick setting tile included in the app can be used to turn it on anywhere.