First Impression
The Black Light Simulator app presents a straightforward concept: using a phone screen to simulate UV light. For users interested in checking thrift store finds or adding a neon effect to photos, the initial experience can be promising. The core feature—a glowing screen effect—works as intended on first launch, which may generate some early enthusiasm. However, this positive first impression is quickly tempered by the app’s aggressive ad placement, which begins almost immediately after the first use.
What It Does Well
When the app is functioning without interruptions, its primary feature delivers acceptable results. The adjustable “UV intensity” slider gives users control over the glow effect, allowing for customization depending on the surface or image being examined. The app also supports applying the filter to existing photos in the camera roll, which can create interesting visual effects for social media content. In dim environments, the simulated UV light can make certain materials—such as white stitching or neon colors—visibly pop, which is the core functionality users are seeking.
Where It Falls Short
The app’s main drawback is its aggressive advertising model. Full-screen video ads appear frequently, often interrupting the user experience after nearly every interaction, including simple navigation within settings. This makes the app feel less like a utility and more like an ad delivery platform. Beyond the ads, the app suffers from performance issues: the live camera feed can be noticeably laggy, making it difficult to hold the phone steady or examine fine details. The shutter button also exhibits a delay when capturing photos, which undermines the app’s usefulness for quick, precise checks—such as inspecting security features on currency or small fabric details.
Is It Worth the Price?
The app is free to download, so there is no upfront cost. However, the trade-off is a significant amount of user patience and tolerance for frequent interruptions. For users who need a reliable, no-fuss tool, the current ad experience makes what should be a quick task into a tedious process. The absence of a paid option to remove ads permanently is a notable omission, as many users would likely prefer a small one-time fee over the current ad-heavy experience. Ultimately, the app delivers its core function, but at a high cost in terms of user experience.
Developer & Support
Developer Moonshine Apps provides limited support options. Users who encounter issues—such as the app crashing when accessing the photo gallery—may find the support contact information difficult to locate. Responses to inquiries tend to be slow, often consisting of automated replies followed by brief, generic troubleshooting suggestions. This level of support may leave users feeling that their concerns are not fully addressed.















