This app uses the Device Administrator permission.

This APP could lock the screen after a certain time to prevent kids continue to play tablets and cell phones.

Kids cannot change it.

Super easy to use.

1. Know how long the video will last it is 22 minutes here
2. Open Timed Screen Lock and set the time to 22 minutes.
3. Remember to check the unchangeable box
4. Go back to the video. Kids watch the videos.
5. After the video is over. Then the screen will be locked. You kids will stop watching other videos.