Great!
Im giving it 5 stars. However if you update it so that you can turn the trop and nikudos (vowels) off with one button, it would be a tremendous app for those learning to lain (read) the Megillah.
I hope you consider this suggestion.
Come to think of it, I dont think there is an app that does that. It might a good idea for you guys. A tikun korin app.
Yis about
Megillas Esther