A camera-based form coach for iPhone, iPad and Apple Watch. Prop your phone up and start: FormFit AI counts every clean rep, scores your form and tells you what to fix, with a tap on your wrist for each rep. Your video never leaves your device.
Coming soon toGoogle Play
Free to start · Watch the 1-minute tour
Widgets show sample values to illustrate the look.
Pick an exercise, slide to start, and lean your phone against anything. When your whole body is in view, FormFit AI starts the countdown by itself, so there's no walking back to the screen.
Reps are only counted when the movement is clean, and every set gets a form score. After the session you get the numbers, and on supported devices a short personal note from the AI form coach on what to tighten up.
Your 3D figure is shaped by your weight and the measurements you log. Or let the camera do it: two photos give you estimated measurements to start from. They're estimates, not clinical measurements, and you can adjust them.
Calories, form and reps over time, your streak, and personal records, laid out so you can see at a glance whether you're moving the right way.
The core is free: five exercises, the First Steps program, a week of history, two themes and iCloud sync between your Apple devices. Pro opens all 31 exercises, every workout program, your own routines and custom moves, full history, Google cloud backup that also reaches Android, every theme, five app icons and extra launch animations.
Your figure starts from an open anatomical body mesh (MakeHuman, released CC0), not a cartoon. Neck circumference is one of the measurements you can log, and it reshapes the model.
Shoulder width and the V of your torso shift as your measurements change, so the silhouette looks like yours.
Log your chest and upper arm and the model fills out or slims down to match. Rotate it and check every angle.
Waist and abdomen measurements reshape the middle of the model, so you can see change exactly where it's happening, and scrub back through time to compare.
Hip measurements follow the same rule: log them, and the figure responds. No guesswork, no generic avatar.
Thigh circumference reshapes the legs, and your weight sets the overall build, from lean to heavier.
Your weight, height and measurements stay on your device. The optional scan can start the measurements from two photos analysed on your phone. They're estimates, so adjust them to match your tape.
Tap a hold to read what it does.
A small ring for today's calories, a medium one with your week and a one-tap start button, and compact lock-screen widgets for a quick glance.
Answer four questions and get a four-week program with a workout for each day: First Steps is free, with more for cardio, core, full body and dumbbells. Each session runs set by set with a rest timer and spoken cues, and targets step up or ease off from how your last sessions went. Build your own routines too. This is exercise guidance, not medical advice.
Squats to Romanian deadlifts, each with a demonstration by the 3D body that lights the muscles it works, a coaching cue and a tip on where to put the phone. Newer moves are marked Beta while counting is tuned.
Enter the weight for dumbbell moves, log a workout without the camera, and watch your estimated max and weekly volume climb.
Workouts, streaks and your go-to move, as a card you can share. A missed day doesn't have to end your streak: a weekly freeze covers it.
Opt-in workout reminders on the days you pick, a streak saver, and a Sunday recap. Skipped automatically when you've already trained.
Cheer friends, join challenges and see the leaderboard. Only totals are shared, and only while you choose to be visible. You can report or block anyone, and invite a friend with a link: you each get a week of Pro.
The watch app taps you for every clean rep and buzzes harder when your form slips, so you can keep your eyes off the screen. It shows reps, form score, live heart rate and calories, lets you skip rest or end the workout from your wrist, and keeps today's ring and streak a glance away. The camera workout still runs on your iPhone or iPad.
iCloud keeps your workouts, weight, measurements and profile in step across your iPhone and iPad for free, with nothing for us to see. With Pro, a private Google cloud backup also carries your progress to Android and to a new phone.
After each workout, a short note on what went well and the one thing to fix. It's written by Apple Intelligence on your own device, so nothing is uploaded. Available on iPhones that support Apple Intelligence.
Use an iPad as your stand-up screen. Layouts spread across the width on iPad, a Mac, or a foldable iPhone, with the same camera tracking.
Midnight is free. Pro adds Aurora, Onyx, Lagoon and Slate, plus every colour theme.
Here is what the AI in FormFit AI actually does, and what it doesn't.
A machine-learning pose model (Apple Vision on iPhone and iPad, Google MediaPipe on Android) finds your joints in every camera frame, using your phone's own chip. The video is analysed live and thrown away.
Your joint angles are compared with the movement rules for each exercise: depth, range and pace. That's how reps are counted and form is scored. These are transparent rules we tuned per exercise, not a chatbot, so they're consistent and work offline.
After a workout, a language model built into your phone (Apple Intelligence, or Gemini Nano on supported Android phones) turns your totals into a short note: what went well, what to fix, one cue for next time. Nothing is sent to the cloud.
The coach only sees numbers like reps, form scores and pace, never your video, photos or body points, and it only runs when you tap "Get my AI coaching". Read exactly how the AI works.
We built this so we don't need to know much about you.
Pose tracking and the AI coach run on-device. Video and scan photos are never uploaded, and nothing is sent to an AI service. A set is kept only if you save it to your own Photos. Only skeleton points for the replay stay on your phone.
No advertising and no cross-app tracking. Anonymous usage and crash data helps us improve the app, and you can switch it off in Settings. This website sets no cookies at all.
Settings ▸ Delete account & all data removes your account and everything we hold. You can also export your data first. How deletion works.
| What you get | Free | Pro |
|---|---|---|
| Exercises | Squat, push-up, plank, knee push-up, glute bridge | All 31, plus your own custom moves |
| Workout plans | First Steps (4 weeks) | Every program and your own routines |
| History | Last 7 days | Everything |
| 3D body and measurements | Body scan and latest measurements when signed in, and a preview of the 3D body | Full timeline: history, trends and the 3D body changing over time |
| Backup & sync | iCloud between your Apple devices | Plus private Google cloud backup, new-phone restore and Android |
| Themes & app icons | 2 themes, Midnight icon, Assemble launch animation | All themes, 5 icons, all launch animations, custom home layout |
| Rep counting, form score, AI coach*, Apple Watch app, iPad, widgets, reminders | Included | Included |
*The AI coach needs a device that supports Apple Intelligence. Prices are set by the App Store, shown in your currency before you confirm, and may vary by country. Subscriptions renew automatically until you cancel at least 24 hours before the period ends, in Settings ▸ Apple ID ▸ Subscriptions. There are no other fees. App screenshots on this page show test pricing; the App Store price is what counts. See the refund policy.
No. The camera feed is analysed on your phone to find your joints, then discarded. We never receive video or photos. For the replay, only skeleton points are kept on your phone.
FormFit AI is free on the App Store for iPhone, iPad and Apple Watch: tap the App Store badge above. An Android version for Google Play is coming soon.
Yes. On iPad it uses the whole screen and the same camera tracking, so you can prop it up and train. The Apple Watch app is a companion: your iPhone or iPad does the camera tracking while your watch taps you on every rep, shows live heart rate and lets you skip rest or end the workout. The watch doesn't track form by itself because it has no camera.
After a workout it turns your numbers (reps, form scores, pace) into a short note about what to fix. It runs on your own device using Apple Intelligence, so nothing is sent to us or to an AI service. It only appears on iPhones that support Apple Intelligence, and it's feedback, not medical or professional coaching. The full explanation is here.
iCloud sync is on by default and keeps your workouts, weight, measurements, custom exercises and profile in step across your Apple devices, using your own iCloud storage. You can turn it off in Settings. Pro adds a private Google cloud backup, which is also how progress reaches Android. Pose data and video are never synced.
Good lighting, your whole body in frame and the phone propped steady matter most. Form scores are guidance based on joint angles, not a coach's judgement, and rep counts can miss in poor conditions. It's a training aid, not a medical device.
They're estimates. Scans work out your shape from two photos, which loose clothing or phone tilt can throw off by several percent. Use them to track change over time, and measure by tape if you need precision.
In the app, Profile ▸ Settings ▸ Invite friends shares a link. When your friend opens it, installs the app and accepts, you each get a week of Pro and they are added to your friends. Up to four friends count and rewards stack. You need an account, not an anonymous one, and each person can use one invite. The link is just your account ID: our website only reads it from the address and sets no cookies.
No. You can use the app without one. An account (Sign in with Apple, Google or email) is for your cloud profile, the free body scan, cloud backup (Pro), the leaderboard and friends. iCloud sync doesn't need one.
The core app is free. Pro is optional: yearly, monthly or lifetime, charged through your Apple ID at the price the App Store shows you.
In the app: Profile ▸ Settings ▸ Delete account & all data. Or email us and we'll do it. Details here.
FormFit AI doesn't know your health. Check with a doctor if you're unsure about exercise, clear space around you, and stop if something hurts. See the terms.
Free on the App Store for iPhone, iPad and Apple Watch.
Coming soon toGoogle PlayQuestions first? Talk to us
FormFit AIFree on the App StoreGet