Getting a new iPad air and want to use the app Onsong which allows you to put pdf chords charts on your iPad and host of other things. I have been on the net looking at reviews and it has been long touted as one of the best. Sometime late last year and into 2021 the app store reviews have gone to one star. Many long term users are complaining about a recent update that has broken a great app. Wonder if there are any Onsong users with an opinion? Any suggestions for an alternative. Thanks