Just doesnt work

I really tried to get this app to work, I updated my phone for it, and even paid the 1.99 which is fairly expensive for an app (especially one the doesnt work) I have an iPhone 6 and
Assumed that as the description said it is compatible with 6s that it would work.... I removed my passcode, tried different pictures, and just simply tried many times to get this to work, it is a very cool idea but it just does not work.

Riley Ames about LivePapers - Live Wallpapers