🔒 Privacy notice

Camera

The camera turns on only after you tap Start camera. A Camera on sign shows while it's running, and the Stop button turns it off. The camera also turns off when you leave the app or switch tabs.

Camera video is processed only on this device, inside your web browser, to find where your hand is so the app can draw bones on top of it. The video is never saved, recorded, uploaded, or sent to us or anyone else.

What we collect

Nothing. The app has no accounts, sign-ups, names, chat, sharing, ads, analytics, or trackers. It doesn't use cookies, and it doesn't keep anything in your browser's storage. Settings like "Little Kids" or "Big Kids" are forgotten when you close the page.

Network

All the app's files, including the hand-tracking software and its model, are loaded from the same website as the app. The app doesn't contact any other servers while it runs. Like any website, the server that hosts these files may briefly keep standard technical logs (for example, an IP address and which file was requested). This app is meant to be hosted with server logging turned off or kept only for a short time, and those logs are never used to identify anyone.

Links

Links that leave the app are behind a grown-ups-only question.

Not a medical tool

For fun and learning. Not a medical tool. Positions are approximate. The bones are a drawing placed over your hand, not a picture of your real bones.

Parents and guardians

Because the app collects no personal information from children, there's nothing to review or delete. If you have questions, contact the app's publisher. (Contact details will be added before this app is published.)

Credits

Hand tracking uses MediaPipe Hand Landmarker by Google under the Apache License 2.0 (license, notice). The tracking runs entirely on your device.