Access system settings, hidden menus, or unexported activities that are normally blocked by the OS.

The app is actually open source. The developer explicitly states that if you cannot pay, you can clone the repository from and build it yourself using Android Studio. Clean Interface:

If you’re trying to launch hidden Android activities for legitimate development or debugging, consider using (open source, on F-Droid) or adb shell am start commands.

List all activities of any application.