Your AI gym buddy.
Prop your phone, lift, and Spotter counts your reps with on-device computer vision — and coaches your form live through your earbuds.
Runs in your browser. Camera stays on your device. Free account to start.
- ≥97% rep accuracy target
- Video never leaves your phone
- One honest plan
No coach. No buddy. No problem.
Built for the lifter alone with earbuds in. Three steps from propped phone to a finished set.
Pick your lift & session length
Choose an exercise (or type your own) and tell Spotter how long you've got. We'll pace the workout to fit.
Prop your phone, step in
Lean it on a bench or plate. A silhouette shows you exactly where to stand. A voice cue confirms framing.
Lift. Spotter counts.
Reps tick up automatically. Form cues come through your earbuds — only when something's actually off.
Most fitness apps treat you like a metric. We don't.
We don't
- Run ads or mid-set upsells
- Send your video to a server
- Fake-cheer every rep
- Hide basic logging behind a paywall
We do
- Count reps on-device
- Stay silent unless we have something to say
- Show numbers we measured, not invented
- Keep one plan, no noise
Built for the lifts you actually do.
Don't see your lift? Type its name when you start a set. Spotter matches it to the closest rule set and tracks joint angles, ROM, and tempo automatically.
Bodyweight
Anywhere — no gym needed- Push-up + variations (diamond, decline, incline, archer)
- Pull-up + variations (chin-up, wide, neutral)
- Air squat, jump squat, pistol, Bulgarian split
- Lunge, reverse lunge, walking lunge
- Dip, plank, glute bridge, hip thrust
Free weights
Gym or home rack- Back squat, front squat, goblet squat
- Bench press, OHP, incline press
- Deadlift, Romanian deadlift, barbell row
- Bicep curl, lateral raise, tricep pushdown
- Lat pulldown, seated row
Auto-detection of the lift from your camera is on the roadmap once we have enough real-gym footage to make it honest.
One plan. No noise.
The core promise — live rep counting and form coaching — is free. Pro unlocks history, programmed sessions, reports, and replays. Cancel anytime. No ads. No mid-set upsells.
7-day free trial of Pro. No card upfront.
Start training freeCancel anytime. Yearly plan coming after public launch.
Everything you need, nothing you don't.
- Rep counting on every supported lift
- Live form cues + premium voice coaching
- Set your session length up front — Spotter manages the clock
- Cloud sync — your progress on every device
- Coach-style session reports after every workout
- Annotated replay of flagged reps
- Full exercise library (free-weight + bodyweight + variations)
- 1RM trends, PR share cards, Apple Health & Google Fit sync
- Priority support & early access to new features
We're rolling out early access in waves over the next few weeks. Web first, mobile soon after. Waitlist signups get in first.
No. Spotter runs the computer vision model directly on your device. We only sync your numbers (sets, reps, PRs) to your account.
We're targeting real gyms — propped phones, baggy hoodies, mediocre lighting. If it doesn't work in your gym, we want to hear about it.
Type its name when starting a set. We match it to the closest rule set and still track joint angles, ROM, and tempo. Auto-detection is on the roadmap.
Yes. Your 3-day free trial doesn't require a card upfront, and Pro itself is month-to-month. No lock-in, no countdown timers, no dark patterns.
The pose-detection core is built and tested. The web app is what you're looking at. We're shipping in small honest steps and we'd rather underpromise.