Disco Flash Color

Disco Flash Color turns your device into a portable disco by flashing colorful lights that pulse to your music. It supports screen-based lights, the camera LED flash, or both, with multiple color programs and fixed bright colors. You can adjust speed with nine levels, and the app can sync to the rhythm of music by using the device microphone.

Designed for parties and emergencies alike, it includes a mic sensitivity calibrator, and clearly states that the app only records ambient sound to generate rhythm; the captured audio is deleted when you turn off the flashlight, never leaving your device. It requires microphone permission to function in rhythm mode.