Public TestFlight beta
PoseCoach — your AI motion coach. Now for badminton and sprint.
Capture your full-body motion in 3D with ARKit — badminton swings, sprint strides, and more — get instant scoring on speed, stability, tempo and technique, and chat with an AI coach about every rep. All on your iPhone, no account required.
Requires iPhone with iOS 17 or later. Apple Watch optional for remote recording.
Built around your motion
Six pillars that turn your iPhone into a coach you can carry to every session — on the court or on the track.
AR real-time motion capture
ARKit tracks 21 body joints in real time with a skeleton overlay — visible during recording and synced frame-accurately in playback. Multi-segment recording in a single session.
AI coach chat
Streaming, personalized feedback on your session — ask follow-ups, tap timestamp links to jump to the exact moment discussed. On-device AI available on iOS 26+.
Swing score card — Badminton
Overhead swings graded S/A/B/C/D across completeness, tempo, joint angles, and stability — with per-swing scores and the top 3 actionable tips to improve.
Speed rating — Sprint
Measures peak and average speed; benchmarks against age-group standards from China, the US, and Canada; and predicts your 100m / 50m reference times.
Auto highlight detection
AI automatically finds the peak-energy moment in your recording — no manual scrubbing. Works for all sports. Tap the timestamp to jump directly to it.
Apple Watch remote
Start and stop recording from your wrist — train solo without anyone to operate the phone.
Private by design
Pose detection, scoring, and playback all run on your device. The AI coach analyzes anonymous skeleton data on our servers — your raw video and images never leave your iPhone.
- On-device pose recognition and scoring (Apple Foundation Models on iOS 26+)
- AI coach uploads only lightweight skeleton coordinate data — raw video never leaves your device
- Use all core features anonymously — no account required. Sign in with Apple available.
Track your progress
Every session is saved on-device. Browse a long-term motion history and watch your scores improve.
- Sessions listed by date with sport type and recording duration
- Edit session title or change sport type at any time
- Deleted sessions recoverable within 30 days
Ready to train?
PoseCoach is in public TestFlight beta — badminton, sprint, fitness, and freeplay today, more sports on the way. We ship updates every few weeks.