Black Light

What Black Light Does

Black Light turns your phone display into a deep-purple screen effect that resembles the look of ultraviolet lighting. It is a visual simulator, not a source of real UV light, so it cannot make fluorescent materials react or replace a physical black-light lamp. The app suits anyone who wants a simple colored glow for an ambient setup, a visual experiment, or a quick demonstration of how a phone screen looks in a dark room.

Controls and Use

The app focuses on a small set of direct controls. You can choose between purple color variations, adjust the display brightness, and use a timer to limit how long the screen stays active. These options make it possible to tune the effect to the room without working through a complicated menu. Its purpose is narrow: open the screen, set the tone and intensity, then leave it running for the chosen period.

Who It Fits

This is a better fit for users looking for a basic screen-light utility than for anyone expecting a full lighting tool. It may be useful for casual visual effects, themed surroundings, or testing color and brightness on a particular device. Because the result depends on the phone’s display, the appearance can differ between screens, and the simulated light should not be treated as ultraviolet illumination.

Listing Snapshot

• Developer: Shiny Lights
• Category: Libraries & Demo
• Rating: 3.43 out of 5 from 7,199 ratings
• Installs: 1,000,000+