Tapping the “tick” or “check” icon under a video will mark it as complete. This is an easy way for you to keep track of any videos you have already watched.
Any videos you have marked as complete will count towards your progress on the “Tracker” page (button at top of the homepage screen on the app).
Videos you have marked as complete will also display a tick icon whilst browsing the library. So you can easily see ones that you have done previously.