I discovered an amazing free app this week, Falling Stars by Trident Gum. Though it may not be a meaty note reading or composition app, it is a great app for teaching the elements of composition to primary students in a brief session. I am planning on using it to have my part time learning support classes explore making music in this way as well. Music reading and writing is a struggle for them, but with this program, they can make and save a composition on the spot!
Compositions can be saved as videos and emailed.