Onsong is good for iPad I think it's about a $12-15 ap, one time charge. Watch a tutorial, but basically it pulls off Chordie and converts the files to very user-friendly formats. You can also put your current files on it, our cut and paste from other sites or make song sheets from scratch. You can edit, which is super useful for cleaning up and condensing the text and correcting wrong lyrics (really helpful..sometimes it's like in "Bull Durham", young girls get wooly) also highlight chords, chords over text or in line, show or not show chord diagrams, add your own chords shapes, scroll (adjusted to your speed), change font size, and VERY helpful...transpose at the touch of your finger(so useful when playing with others and they play in a different key or when you are fiddling and trying to figure which key to sing it in. You can also email out sheets to friends or print or send to drop box or wirelessly share with folks you are playing with. You can put sticky notes anywhere but there is nothing for tab or standard notes. You can improvise a little bit of tab w keyboard to write out a very short lick, but it is a challenge and sometimes it gets crazy. All in all an excellent ap and it has freed me from carting heavy song books around and given me a huge library. Even if I could play by ear, which I can only do to a limited extent, I do need the lyrics for many songs and chord reminders certainly don't hurt. As Jim said, there are others and many folks like forscore, I only have used onsong but I am very satisfied.