
Beast Plank - AI Plank Timer
Move and the timer stops
0 ratings
With Ads
💪 Health & Fitness
Free
In-App PurchasesWith Ads
Rating summary
About
MOVE, AND THE CLOCK STOPS.
Beast Plank is a plank timer that watches your joints in real time through your iPhone's camera. The clock only runs while you hold still. Drop an elbow, sway a hip, and it stops instantly. The beast does not miss.
WHO IT IS FOR
- Anyone whose "one minute plank" is really 40 seconds of shaking
- Anyone who keeps counting while their form falls apart
- Anyone who wants a referee at home that cannot be fooled
- Anyone building a daily core-training habit
AI STILLNESS JUDGING
On-device pose estimation tracks your upper-body joints - head, shoulders, elbows and wrists - and up to 17 in total with lower-body judging on. Beast Plank measures how far each joint drifts and turns the moving ones red. Detect motion and the timer pauses automatically; hold still and it resumes on its own.
SEE WHAT MOVED
The screen names the joints that broke the hold, like "(L Shoulder, R Elbow)", so you learn exactly where your form gives out.
TUNE HOW STRICT IT IS
- Strictness: level 1-10. Higher levels react to smaller movements.
- Reaction window: 0.2-2.0 seconds. Shorter reacts faster, longer tolerates wobble.
- Countdown: 3-30 seconds to get into position before the clock starts.
- Lower body: off by default, because the far leg hides behind the near one in a side view and causes false positives.
FRAMING GUIDE
Live guidance tells you when you are too close or too far, so your whole body stays in frame. If a joint leaves the frame, the timer stops as well.
YOUR RECORD, KEPT
Every cleared session is saved on your device: total sessions, total time, personal best, and the duration and pause count of each hold. Finish without a single pause and you earn the NO-STOP badge.
45 LANGUAGES
The app follows your device language on first launch, and you can switch any time in Settings.
PRIVACY: THE VIDEO NEVER LEAVES YOUR IPHONE
- Pose estimation runs entirely on your device.
- No camera frames, photos or video are ever stored - not even temporary files.
- Joint coordinates and other analysis results are never uploaded.
- Your plank history is stored only on your device. There is no cloud sync.
PREMIUM (OPTIONAL)
- No ads: hides every banner and video ad.
- Longer timers: raise the limit from 60 seconds to 999 seconds.
Plans
- Monthly: $1.99 per month (auto-renewing)
- Yearly: $19.99 per year (auto-renewing, 2 months free)
Payment is charged to your Apple Account at confirmation of purchase. Subscriptions renew automatically unless auto-renew is turned off at least 24 hours before the end of the current period. You can manage or cancel your subscription in Settings > Apple Account > Subscriptions.
BEFORE YOU START
The app uses your camera, so train in a well-lit space with room to fit your whole body in frame.
IMPORTANT
This app is not intended for medical, diagnostic or treatment purposes. Its judgements are a training guide and are not medically accurate. If you have any health concerns or a pre-existing condition, consult a doctor before use. We accept no liability for injury or accident during exercise.
Terms of Use: https://free-apps-studio.com/terms/beast-plank.html
Privacy Policy: https://free-apps-studio.com/privacy/beast-plank.html
From FREE APPS STUDIO
Show more
What's New in Beast Plank
1.0.5
September 9, 2026
The App Store listing now shows all 45 supported languages, and the camera and tracking permission prompts are translated into every one of them.
Subscription plans
Premium (Monthly)
・No ads ・Timer limit raised to 999 seconds
$1.991 Month



