鬼プランク - 動いたら止まるプランクタイマー

If you move, time doesn't advance.

Oni Plank is a plank-exclusive timer that monitors your joints in real-time using your smartphone's camera. The timer only advances while you remain still, and stops immediately if your body moves even slightly. Whether your arms drop or your hips sway, the demon won't miss a thing.

Main Features

• AI-powered stillness detection — On-device pose estimation tracks 7 joint points including head, shoulders, elbows, and wrists. Moved joints are displayed in red, and the timer automatically stops/resumes.
• Understand what caused the movement — The screen displays which joints collapsed, such as "(left shoulder, right elbow)"
• Fine-tune judgment strictness — Adjust severity (levels 1–10), response time (0.2–2.0 seconds), countdown (3–30 seconds), and toggle lower body detection on/off
• Distance guide — Real-time guidance on whether your entire body fits in the frame. Tells you if you're "too close" or "too far"
• Records are saved — In addition to total count, total time, and personal best, review history showing seconds per attempt and number of stops. Completing without a single stop earns a "No-Stop Achievement!"
• Japanese and English support

Perfect for:

• People whose plank times become vague due to self-reporting
• People who count time even when their form breaks down
• People who want an "uncheateable referee" for home workouts

Privacy: Video never leaves your device

Pose estimation is entirely processed on-device. Camera footage, still images, and videos are never saved (not even temporary files). Analysis results such as joint coordinates are not transmitted externally, and history is saved only on your device.

Premium (Optional)

Ad-free / timer limit unlocked (free version: 60 seconds → up to 999 seconds). ¥300/month or ¥3,000/year.

System Requirements

Android 8.0 (API 26) or later / iOS 15.6 or later (iPhone and iPad compatible).

※This app is not intended for medical purposes, health diagnosis, or treatment. If you have health concerns, consult a doctor before use.

開発元サイト: FreeAppsStudio