AI Sports Motion Coach
Pose Coach is your AI sports motion coach.
Record your training with your iPhone and let AI break down your movement, then tell you exactly what to fix next. Badminton and running today, with auto-cut highlight reels and a coach you can chat with.
Requires iPhone with iOS 17 or later. Apple Watch optional for remote recording.
5-Dimension Scoring is Here. The kinetic chain — sports science's most fundamental power principle — is now measurable on your iPhone. From "that swing was slow" to "your energy breaks between shoulder and elbow."
What's inside
An AI coach that explains what to fix
Ask in plain language and get multi-turn feedback on your recording. Tap any timestamp to jump straight to the moment the coach is talking about. On-device AI on iOS 26+.
Compare your form to a reference you choose
Place your clip side by side with a reference you pick — your best rep, a saved session, or one shared with you. Watch the two play together and spot the difference.
Clear scores, clear next steps
Every rep is graded S/A/B/C/D across five dimensions — including kinetic chain analysis of how power flows from hip to wrist — with the top 3 actionable tips so you always know what to work on next.
How swing scoring works →Kinetic Chain — see how power flows through your body
In every overhead swing, power should travel in a sequence: hips fire first, then shoulder, elbow, forearm, and finally wrist — like cracking a whip. Kinetic Chain analysis, based on biomechanical models, grades the quality of that hip-to-wrist energy transfer and pinpoints where the power leaks, so you know which link to train next.
How swing scoring works →Hips fire first — the chain starts in the lower body, not the arm.
Shoulder follows — rotation transfers energy up the torso.
Elbow leads, forearm snaps — the whip accelerates through the middle.
Wrist unloads last — power reaches the racket at contact.
Running gait and efficiency, scored
Measure peak speed on-device, benchmark against age-group standards, and get an efficiency scorecard for your stride.
Per-swing breakdown and next session focus
See individual swing scores and a clear "Next Session Focus" so you walk into the next session knowing exactly what to work on.
Record solo with Apple Watch
Start and stop recording from your wrist — train alone with no one to operate the phone.
Your video never leaves your device
On-device pose recognition and scoring. Only anonymous skeleton data is uploaded when you use the AI coach — your raw video stays on your iPhone.
Ready to train?
Pose Coach is now on the App Store — badminton, running, fitness, and freeplay today, more sports on the way. We ship updates every few weeks.