Grindlocker: Earn Screen Time

Grindlocker locks your most distracting apps and turns screen time into real workouts. An AI-powered camera counts your reps in real time—push-ups, sit-ups, and squats—with no cheating and no manual input.

Customize which apps to lock, choose your exercise, and set your own rep-to-time ratio. All processing happens on-device for privacy, with XP, streaks, and levels to track progress as you earn time back.