Rhk216 ,

While the UI is the best looking of its kind, there are quite a few features that have yet to be added. You're able to save your own cord progressions, however you are not able to save the full range of cords. Something that makes little sense to me. Also, once you save the progression you can't go back and edit it. There is no reverse chord look up, however it appears they are working on it. Until these issues get fixed, this is only a $.99 app. There are free apps with the same functionality, only less aesthetically pleasing.