This app was mentioned in 2 comments, with an average of 3.00 upvotes
Play - https://play.google.com/store/apps/details?id=com.ccm.skills&hl=en
Here is a good app resource for off ice training.
I have it for iOS.
https://play.google.com/store/apps/details?id=com.ccm.skills&hl=en