This is not a stand alone app. Theme require Kustom Live Wallpaper Maker PRO application What you need: ✔ Kustom (KLWP) PRO ✔ Compatible launcher that supported by KLWP (Nova launcher is recommended) How to install: ✔ Download Didactic System UI for KLWP ✔ Open your KLWP app, choose menu icon on top left, then load preset ✔ Find and tap on the Didactic System UI for KLWP Theme ✔ Hit "SAVE" button on the top right Instructions: In the Nova launcher settings you need: ✔ select 1 screen ✔ set wallpaper scrolling ✔ hide status bar and dock Please contact me with any questions/issues before leaving a negative rating.