Blur Video, developed by Zsolt Kallos, is a free Android app that allows users to protect their privacy by blurring out sensitive parts of a video before sharing it. The app is primarily used for blurring faces, license plates, ID cards, driving licenses, official documents, trademark logos, and copyrighted material.

The app is easy to use – users simply need to select a video to blur, choose between automatic or manual blurring, and export the video to share or save to their gallery. The app offers three ways to blur – face tracking, object tracking, and manual tracking. Face tracking automatically finds and follows faces, object tracking allows users to select an object or area to be automatically followed, and manual tracking allows users to record the movement of the area to be blurred.

Overall, Blur Video is a useful app for those who want to protect their privacy while sharing videos. The app is user-friendly, efficient, and provides multiple ways to blur sensitive parts of a video.