The app is kind of cool, but the options for setting the wall papers suck. I can either set it to Home screen or Home and Lock screens. I just want the 3D image on my lock screen. They are too distracting on my home screen. The worst part is that it is the opposite of how my phone works in native settings. My phone only lets me do Lock screen or Lock and Home screen, so there is no way using my native wall paper set up in conjunction with this app to only get the 3D images on my lock screen.