✓ Real-time squat depth detection using phone sensors
✓ Audio feedback for proper depth achievement
✓ Two phone positions: Front Pocket or Side Mount
✓ Adjustable depth threshold (60-110°)
✓ Rep counter with valid/shallow tracking
✓ Success rate calculation
✓ Voice commands: Say "Squat" to start, "Rack" to finish
✓ Countdown timer (5-20 seconds)
✓ Set history tracking
✓ Manual rep editing
✓ Calibration for accurate readings
✓ 10 languages supported
✓ Ad-free option available
✓ Walk-through Guide