Flash Notification is a utility application developed by D.V.N for Android devices. Its main function is to alert you about incoming calls and messages through flashing the device's camera flash. With this app, you will never miss any important calls or messages, even when your phone is on silent mode.

The application allows you to customize the frequency of the flash, and set it to turn on or off for specific contacts. You can also schedule the flash notification to start and end at specific times. The material design UI is simple and easy to navigate, making it accessible for all users.

In addition to calls and messages, the app also alerts you through the flash when a new notification arrives on your device. You can turn on or off the service manually based on your device status sound mode as Ring, Vibrate or Silent mode. The app supports English and Vietnamese languages.

Overall, Flash Notification is a handy tool for those who want to stay connected without being disturbed by loud ringtones.