Support
For usage questions, feedback, or privacy inquiries, contact us by email below. We usually reply within a few business days.
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Contact Us
Email: xp84012493@163.com
Please include your device model, OS version, app version, body region, and the steps to reproduce the issue.
FAQ
How do I start?
On the Measure tab, choose a body region (such as neck, shoulder, or knee), then select a movement mode. Follow the on-screen guide to face the camera front-on or sideways. Once the silhouette aligns stably, begin the movement; the interface shows live angle estimates and peak values.
Are readings accurate? Can they be used for medical diagnosis?
Angle readings depend on image quality, stance, lighting, and clothing occlusion. They are estimates and may be wrong. This app is not a medical device and does not provide medical advice, diagnosis, or treatment. Do not use the data for medical decisions; stop immediately if you feel pain or discomfort.
What is the difference between Free and Pro?
Free: unlimited real-time neck and elbow estimates with positioning guidance, history, single-record PDF share, and the full notice & privacy policy. Pro regions (shoulder, waist, hip, knee, ankle, wrist): 10 free trials each; a one-time purchase unlocks all Pro regions plus mobility trend charts and overlay video. Purchase or restore under Me → Upgrade.
How do I restore a purchase?
After reinstalling or switching devices, sign in with the same Apple ID used for the purchase, then tap Restore Purchases on the upgrade screen. Restoring a lifetime purchase will not charge you again.
How do I save a session?
After finishing a movement, save the peak values to on-device history. In History you can filter by region, movement, and side; edit pose snapshots; and share a single-session PDF. History stays on device and is not uploaded.
What is the difference between screenshot and recording?
Screenshots save the annotated preview to Photos. Pro can record session video with skeleton and angle overlays.
Tracking is unstable or I cannot align?
Use good light and a clear background; fitted clothing usually helps. Keep the required body parts fully in frame, and face the camera front-on or sideways as prompted. Readings depend on stance, occlusion, and image quality and may be inaccurate.
Do I need internet or an account?
Pose and angle processing runs on your device. Measurement and history work offline and do not require an account. Purchases and restore require a connection to the App Store.
Camera or photo library permissions?
Estimates need camera access; saving screenshots or recordings needs photo library write access. You can revoke permissions anytime in system settings. See the Privacy Policy.
How do I change language or dark mode?
Open Me to adjust the interface language (Chinese/English) and light/dark theme.