For two dollars, pretty good app – Guitar Notepad - Tab Editor Review

Easy to use tab editor and having the fret board on the same screen is really nice. My first gripe, which considering the price might be unwarranted, is that you cannot indicate how big the bends are. That's when I realized that when you play the tab back, you get only the chords or notes without effects; you can mark a note "bend" or "vib" or "term" but there is no effect when you hear it. Too bad, because I otherwise would have found it great to try composing some licks when I don't have my guitar. Otherwise, great app for the price. Maybe future releases will have working modulation for notes and chords.
Review by Nauthor on Guitar Notepad - Tab Editor.