Count clean reps. Hold clean stretches.
PE Rep Counter watches your jumping jacks, squats, star jumps and stretches through your camera and checks them against clear rules. A rep counts only on a full cycle: arms overhead AND feet out for jacks, thighs flat AND standing tall for squats, feet off the floor in a full star for star jumps. Half reps do not count, and every miss gets one named hint within about a second: arms up, feet out, go lower, jump higher. Stretch mode banks good-form seconds only, the clock pausing whenever the position breaks.
A home practice tool, not a teacher, therapist or safety device. This is a home practice tool, not a teacher, therapist or safety device. Everything runs on your device: no video, audio or images are sent anywhere. Feedback is automatic and can be wrong. For real instruction, learn from a PE teacher or qualified fitness instructor, linked on the Resources page. Not a fitness assessment. Stop if anything hurts. Follow school safety rules: clear the space around you, and use with teacher supervision at school. Full disclaimer
Standing position: not set yet. Set it in a lesson before your first set.
Camera setup: one person at a time, fully visible. Jumping jacks, star jumps and stretches use the FRONT view: face the camera, about 2 metres away. Squats use the SIDE view: put the camera to your side. Clear the space around you. The camera turns off when you leave the lesson.
Jumping jacks
Squats
Star jumps
Stretches
Workouts
Quiz me
How a rep is judged
- Jumping jacks: a rep counts on rest, then arms overhead (both wrists above the shoulders) AND feet out (ankle spread at least 1.8x shoulder width), then back to rest. Arms up without feet out, or feet out without arms up, is rejected with the named hint.
- Squats: hips drop at least 35% of leg length with knees bent to 110 degrees or less, then hips return within 10% of the start height with knees opened to 160 degrees or more. A shallow dip is rejected: go lower. Coming up without straightening the legs is rejected: stand all the way up.
- Star jumps: both feet leave the floor (at least 4% of body length up) with arms wide and legs wide, then land and reset. Spreading your limbs without jumping is rejected: jump, your feet never left the floor.
- Stretches: good-form seconds bank only while the position holds: overhead reach needs both hands up and a tall stand; side bends need the lean plus one arm overhead. The clock pauses whenever the position breaks.
- One person at a time. No names or photos are stored anywhere: the app only keeps rep counts, points and badges in this browser.