Motion Tracking

Motion Tracking keeps a manually drawn blur region locked onto a moving subject as the video plays — so you don't have to adjust the region frame by frame.

How to use

1. Open a video and switch to Manual / Custom Blur.
2. Draw a region over the target you want hidden.
3. Tap Track — the app follows the movement automatically for the rest of the clip.
4. Scrub through the timeline to verify the coverage.
5. Export.

When to use it

Anything that moves and isn't a face — a moving subject you want hidden, a reflection, a screen. Draw once, let tracking do the work.

Note

Tracking can drift on fast cuts, heavy occlusion, or sudden direction changes. Scrub through the timeline after tracking and adjust wherever coverage slips — you can re-anchor the region manually at any frame.