About Flash Alert – Flash App
I’m the kind of person who constantly misses calls because my phone is on silent. I work in a busy office and can’t have it buzzing all the time, so I went looking for a visual alert app. That’s how I stumbled on Flash Alert by Applus Studio. I’ve been using it for a few weeks now, and it’s basically given my phone a proper notification LED, something most modern phones have sadly ditched. It’s a simple idea, but it’s solved a real daily annoyance for me.
Features & Highlights
The core feature is, of course, using the camera flash for alerts. But what I appreciate is the level of control. You can set it to flash for specific things—I have it on for calls and my messaging apps, but I turned it off for emails. You can also change the flash pattern. There’s an “SOS” style that’s frantic, a slower pulse, and a simple double blink. I use the double blink; it’s noticeable without being seizure-inducing. A feature I didn’t know I needed is the screen flash option. If your phone’s flash is covered or you’re worried about battery, it can make your screen light up white instead. I tested this at night, and it definitely wakes you up.
User Experience
My first real test was during a team lunch at a noisy restaurant. My phone was face down on the table, and a call from my partner came in. Instead of a faint vibration I’d never feel, a bright white light pulsed from the back of my phone. I saw it immediately through my peripheral vision. Another moment was when I was vacuuming with headphones on. A text came through, and the flash reflecting off the wall caught my eye. It does take a day or two to get used to the flashes—my cat certainly gave the phone a wide berth at first. The app itself is straightforward, no confusing menus. I had it set up and running in under a minute.
Pricing
The app is completely free to download and use with no trial period. There are banner ads at the bottom of the main screen, but they’re static and not video ads, so they’re not intrusive. I was fully expecting a paywall to unlock different flash patterns or to remove ads, but so far, I haven’t found one. For a free app that delivers exactly what it promises without nagging you to upgrade, it’s an absolute steal. I’d say it’s absolutely worth it, especially since the core functionality isn’t gated.
Updates & Support
Looking at the update history on the Google Play Store, Applus Studio pushes out updates every couple of months. Recent updates have focused on compatibility with newer Android versions and adding support for more messaging apps. I haven’t needed to contact support, as I haven’t run into any bugs. The app permissions are clear, and it hasn’t crashed on me once. For a small, free utility app, this level of maintenance is better than I expected.
Security & Privacy
I downloaded Flash Alert directly from the Google Play Store. In terms of permissions, it needs access to your notifications (to know when to flash) and your camera (to control the flash). That’s it. There’s no request for contacts, location, or storage. The privacy policy linked in the store is standard, stating they don’t collect personal data. The ads are present, as mentioned, but the app doesn’t feel like it’s tracking my every move to serve them. For a notification tool, it feels minimal and focused, which gives me confidence.
Can I choose which apps trigger the flash alert?
Yes, you can customize the flash to work only for specific apps or contacts. For example, you can set it to flash for calls and messaging apps while leaving it off for emails, giving you full control over which notifications get your attention.
What flash patterns are available, and can I change them?
The app offers several flash patterns, including an SOS-style frantic blink, a slower pulse, and a simple double blink. You can easily switch between them in the settings to find one that’s noticeable without being overwhelming.
The flash doesn't seem to work on my phone. What should I do?
First, make sure the app has permission to access your camera flash in your phone’s settings. If it still doesn’t work, try restarting your device or reinstalling the app, as some Android models require a quick toggle of permissions to activate the flash properly.
Will the flash alert drain my battery quickly?
The flash does use some battery, but the impact is minimal for typical daily use. If you’re concerned, you can switch to the screen flash option, which lights up the display instead of the camera LED, saving battery while still providing a visual alert.
How does Flash Alert compare to the built-in notification LED on older phones?
Flash Alert effectively replaces a missing notification LED by using your phone’s camera flash or screen for alerts. Unlike a traditional LED, it’s much brighter and more noticeable in noisy or busy environments, though it may be a bit more distracting for your cat.

















