Plank Form Timer vs Beast Plank
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Plank Form Timer
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Plank Form Timer counts only the seconds you actually hold good form. Stand your phone at your side and start. The clock runs while your body stays in a straight line and stops the moment your hips sag or pike, so your record is honest. A TIMER GATED BY YOUR FORM • The clock pauses when your form breaks and picks up again when you recover • Instant cues: lift your hips, lower your hips, straighten your body • Voice call-outs every 30 seconds so you never have to look at the screen KEEP THE SESSION AS A VIDEO • Save a video with the skeleton, hold time and pause reasons drawn in • Sound is captured too, so you can hear the cues again later • Date, time and your approximate area are stamped on the video • Recording can be turned off any time in Settings ONE VIDEO FOR THE WHOLE DAY • Join a day's sessions into a single clip at 1x, 2x or 4x • Skip the paused parts so only the time you truly held remains • Save to Photos or share it SEE YOUR PROGRESS • Daily total, longest hold, breaks and calories • A calendar with a grade for each day • Swipe left and right to look back at any day Everything runs on your device. Videos and audio stay on this phone unless you share them yourself, and no account is needed.
Beast Plank
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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
Screenshots
Verdict
The clearest difference is update cadence: Beast Plank at every 5 days against Plank Form Timer's every 2 weeks. Beast Plank also leads on device support (3 vs 1) and iOS requirement (15.6 vs 17.0). On price, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Plank Form Timer sells 1 one-off in-app purchase and Beast Plank sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.
Plank Form Timer ships an update every 2 weeks, Beast Plank every 5 days. The most recent releases landed on October 6, 2026 and October 8, 2026 respectively.
| Parameter | Plank Form Timer | Beast Plank |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 weeks | Every 5 days — better |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 15.6 — better |
| Further details — not scored | ||
| Size | 13 MB | 79 MB |
| Age rating | 4+ | 4+ |
| Developer | Hosung Hwang | FREE APPS STUDIO |
In-app purchases
Plank Form Timer
- Remove Ads$0.99
Beast Plank
- Premium (Monthly)$1.991 Month
- Premium (Yearly)$19.991 Year







