Wrist Trainer: Wrist Exercises

Wrist Trainer — your wrist rehabilitation training companion

Wrist rehabilitation exercises don't need special equipment. Hold your phone sideways, perform wrist extension and flexion, and the app calibrates automatically and counts every rep — with training records kept only on your device.

Features:

• Automatic counting: the phone's motion sensors detect wrist extension and flexion; a rep counts after the target angle is reached and held;
• Automatic calibration: hold the phone sideways, screen down, and stay steady for 3 seconds;
• Adjustable target angle and hold duration;
• Independent counts for both directions with haptic feedback and voice counting (English/Chinese audio);
• Local session history to review progress anytime;
• Interface in English, 简体中文, Español, Português, 日本語, 한국어 with light and dark themes;
• Raw sensor data is never saved or uploaded.

Account & Premium boundary:

• Core offline training works without an account;
• Some goal modes and Premium summaries require an app account with active Premium;
• Price, trial eligibility, renewal, and cancellation are shown and decided by Google Play billing and subscription management — the app makes no promises.

Device & measurement limits:

• Requires a compatible phone motion sensor;
• Results estimate the phone's relative posture and can be affected by device model, grip, whole-arm movement, speed, and sensor noise;
• This app is not a medical device and offers no diagnosis, treatment, or medical advice. For wrist pain or injury, consult a doctor or therapist.

Recent changes:
1. Clear subscription terms before purchase: trial end, renewal price, and how to cancel.
2. New realistic 3D hand model throughout training, onboarding, and history screens.
3. In-place demo videos on home training plans; tap the video to pause.
4. New launcher icon and themed startup splash with a smoother launch transition.
5. Onboarding refreshed to match the new home style with clearer grip guidance.