This is PhotoPhase, a live wallpaper that displays a subset of your photos on your wallpaper that are rotated in small intervals of time with beautiful transitions and effects. The app is very easy to use and doesn't require much memory or power. It will work on most Android devices and can be set as a lock screen and home screen wallpaper. It is also available in the latest version as a widget.

To install the app, you need to have root access or you need to be running a version of Android that is compatible with the PhotoPhase app.