Sign Motion

Sign Motion turns the movements of your face, body and both hands into colorful lines on a black background. • View face outlines, eyebrows, eyes, pupils and mouth movements • See shoulders, arms, body and finger positions as a skeleton • Choose whether to show the camera background • Save skeleton-only MP4 videos on black • Track on your device, with no account required Recordings contain no camera footage or audio. The app has no feature that sends camera images or tracking results to the developer’s servers. Capture prefers 60 fps on supported cameras. Camera capture, display updates and tracking run at separate rates. Recordings use a 60 fps setting, reusing the previous skeleton when processing falls behind. This does not guarantee 60 new tracking results per second. Use good lighting and keep your face, shoulders and both hands in view. Hidden body parts, fast motion and low light can cause missing or inaccurate tracking. The app does not classify or translate sign language, track the tongue or identify people. It is not intended for medical measurement or diagnosis. iPhone: Requires iOS 18 or later. Use the front camera, or TrueDepth / rear LiDAR on supported devices. If 60 fps and depth cannot be used together, tracking uses RGB. Save 720 × 1280 videos to Photos or share them.