Perfect your
form.
Real-time exercise coaching powered by on-device pose detection. See every angle, fix every rep — and nothing ever leaves your phone.
AI form coaching, right from your camera
Real-Time Skeleton Overlay
18-joint skeleton drawn over your camera feed, color-coded by form quality. Green means good, amber means watch out, red means fix it.
Automatic Rep Counting
A state machine tracks your rep phases from joint angles. No tapping, no counting in your head — just lift.
Live Form Scoring
Every rep gets a score based on your joint angles vs. exercise-specific rules. Track improvement per-rep and per-session.
Coaching Cues
When your form drifts, you'll see exactly what to fix: 'Chest up,' 'Hinge deeper,' 'Knees over toes.' Specific, actionable, instant.
Haptic Feedback
Feel it when form breaks. Subtle haptic patterns alert you without looking at the screen mid-set.
Progress Tracking
Calendar heatmap, per-exercise trend charts, and personal bests. See your form improve over weeks and months.
Three steps to better form
Set up your phone
Prop your phone to the side so the camera can see your full body. A well-lit room works best.
Start your set
Pick an exercise and begin. Form tracks your joints in real-time — 18 points, 30 frames per second.
Get instant feedback
See angle readouts, hear coaching cues, and review your form score after each set.
9 exercises.
Infinite reps.
Each exercise is hand-tuned with specific angle rules, rep detection thresholds, and coaching cues. The pipeline is fully parametric — every exercise gets the same precise analysis.
- 3 tracked angles per exercise
- Automatic rep counting
- Configurable coaching cues
- More exercises added regularly
Squat
Quads, Glutes, Core
FREEPush-Up
Chest, Triceps, Core
FREEDeadlift
Back, Hamstrings, Glutes
FREEOverhead Press
Shoulders, Triceps
PROLunge
Quads, Glutes, Balance
PROPlank Hold
Core, Shoulders
PROBent-Over Row
Back, Biceps
PRORomanian Deadlift
Hamstrings, Glutes
PROBench Press
Chest, Triceps, Shoulders
PROEvery rep, scored
Form evaluates your joint angles against exercise-specific rules for each rep. Your session score is the average across all reps — so you can track exactly how your form improves over time.
Good form
Joint angles within the target range
Needs attention
Slightly outside range — a coaching cue appears
Fix it
Well outside range — haptic alert and visible warning
Your body, your data. Period.
Most fitness apps want your data. Form doesn't even have a server to send it to.
No accounts
No sign-up, no login, no email. Open the app and start training immediately.
No servers
Every camera frame is processed on-device by Apple Vision. Nothing is uploaded — ever.
No tracking
Zero analytics SDKs. Zero ads. Zero data collection of any kind. Your workout is yours.
"Video is processed on-device and never leaves your phone."
More exercises, more insight
Free
Core exercises with full coaching
Monthly
$0.10/day
Yearly
$0.05/day
Save 44%
Free to download. Upgrade anytime.
Train smarter,
starting now.
Free to download. Your AI form coach is waiting.
Requires iOS 17 or later