To uninstall Best Accountability from a Chromebook, the account owner should do the following:

1. Go to the device settings page. Login with the subscribed account if prompted to login.
2. Find the device you wish to uninstall the app from, and click on it to expand it's settings.
3. Check the delete checkbox
4. Click the Save button in the bottom right hand corner
5. Get the Chromebook, and open up Chrome
6. Click on the Puzzle icon in the top right corner
7. Find the Truple icon
8. Click the 3 vertical dot menu button next to the Truple icon
9. Click Remove from Chrome
10. Click Remove