I wrote it above, but I correct it.
This app works on Android 11.
Instead, after installing, you should check mark on top of other apps.
This mode is not autoplay, but a mode that makes judgment easier.
Basically, if you miss a note of a song with high difficulty, an error occurs in the result window.
If you have some skill, this mod will be very helpful in doing full combos.
Thanks to the creators for making Million Live Mode.