OnSong is always being developed to ensure it works not only with the latest versions of iOS 10 and devices from Apple, but also with the services that integrate into the app.
Some of you have asked if it is safe to update to iOS 10. We have tested OnSong with the final released versions of iOS 10 and OnSong has been working great. As of the time of this writing, approximately 43% of active users are running iOS 10 with about 47% of users running iOS 9. We have not had any users report any issues specifically with OnSong running on iOS 10.
That doesn't mean you won't experience an issue. Some users have experienced issues during the update process or performance problems with iOS 10. We always recommend that you backup your OnSong library before performing any updates in the event there is a problem during the process. Please watch our backup video tutorial to learn how.
We also recommend that you backup your device to iTunes or iCloud so if it's every lost, stolen, or stops functioning, you can restore to another device.
One change that has happened in iOS 10, if you are now prompted to allow OnSong to access your iTunes Media Library. If you decline, OnSong is not able to access your iTunes Music Library to link chord charts to tracks. If you inadvertently declined to provide access, you can turn this back on by going into the Settings app and choosing OnSong on the left under Applications. You can then toggle iTunes Media Library access at the top of that screen.