FitToll blocks the apps you choose. To unlock one, you do push-ups or squats in front of your camera. There's no skip button. On-device pose detection (Apple Vision on iPhone, ML Kit on Android) reads your joint angles, so shaking the phone does nothing. No video is recorded or uploaded, and it works offline. Free: both exercises and one blocked app. Premium lifts the one-app limit. On the App Store and Google Play. Pay the toll to scroll.