This app uses your smartphone as a red safety light. It dramatically improves safety on the road when cycling or running at night. ● This is the world's first safety light app using pixel art. ●Select from 10 unique dot animations. ●Black & red graphics improve visibility! ● The usage is so simple! ● The sleep function is automatically disabled. There is no worry about the screen disappearing during use. ● The app is completely free! There is no advertisement display (as of 2019). Don't worry about your ads appearing during use.