This app would be perfect- its beautifully designed, great concept, etc. except that it has one fatal flaw. It forces the user to keep going with a stroke until a bell rings. However, if you dont keep pushing your stroke past the end of the guide, you dont get the bell and you cant move on to finish the letter. And when youre in that position, with the stroke done, but not pushed past the end so you get the bell, youre stuck. It takes me several tries to trigger it. Hence my kids simply cant use the app on their own, even though they do well with drawing the letters. Frustrating. Ugh.
DR1975 about Montessorium: Intro to Letters