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Screenshots
Why it ranks here
What Black Light does
Black Light turns an Android phone or tablet screen into a dark purple light effect that resembles a black-light glow. It is a visual simulation only: the display does not produce ultraviolet light and should not be used for tasks that require a real UV lamp. The app suits users who want a simple coloured screen for atmosphere, visual experiments, or basic demonstrations.
Controls and everyday use
The app keeps its purpose narrow. Users can adjust the purple tone and screen brightness to change the look of the effect in different rooms and lighting conditions. A timer is also available, which can stop the display after a chosen period and reduce the chance of leaving the screen active unnecessarily.
- Screen-based black-light effect rather than a physical UV source
- Selectable deep purple colour variations
- Brightness adjustment for different surroundings
- Timer for limited sessions
Who it suits
Black Light is best for someone looking for an immediate, low-complexity screen effect rather than a broad lighting toolkit. It can be useful for parties, photography ideas, or checking how colours appear under a purple display. Its focused design also makes it easy to open and use without learning a large set of controls.
Position in the category
Listed in Libraries & Demo, Black Light has more than 1,000,000 installs and a rating of 3.43 from 7,199 reviews. Those figures point to a widely tried app with a mixed reception. Developed by Shiny Lights, it delivers a small set of clearly defined controls, but its usefulness depends on wanting this particular screen effect. The main limitation is also the central fact: a phone display can imitate the appearance of black light, not its ultraviolet properties.
