PCiTunesGuy

Firstly, praise is due for how well it tracks the beat. Nicely done. The issues are how it forces to a reversed landscape and there's no option to switch it. It really shouldn't require landscape at all and, at the very least, it should be able to flip counter clockwise for that forced landscape view, instead of clockwise. I've encountered no other apps that only work that way. All others follow phone orientation. The other issue is related - closing the app requires swiping from the direction of the forced landscape view.

Aviary Photo Editor was excellent. This horrible app that replaced it is nothing like it. This is a pay for filters app now.