Very good HOWEVER:

This is a really nice app for only 2.99,
However, It gets lags and crashes every 5-10 minutes, so Im constantly losing work unless I save all the time, which I will do anyway. Closing background apps as suggested did not help. I am using the 4s. I would rate this at 5 stars and pay a higher price, say $7 if it didnt crash, and $15 if it didnt lag or crash. Will still try to use, thank you!

Evregreen about iWriteMusic