It's Flash Light(torch) App. for lighten darkness. It just satisfies basic flash light function. However, if you find your Glasses in the darkness, it will help you. drag up and down : set brightness drag left and right : change color(white, R, G, B) double click the screen : On and Off Flicker Mode. Setup Menu : Set External Flash as possible. - Always screen on - Change to full screen. - Quit App. push Back button - Running background push Home button. It's free Ver. include AD.