What is this?
Basically by installing this application, as soon as you receive a notification, the front flash of your phone starts blinking as it were a notification LED.
It can be useful to all those (but not only) that have a device without the notification LED, but instead have a flash next to the selfie camera.
Various settings are also available to better configure the application to suit your needs.
It works on all devices equipped with a front flash, regardless of whether or not it has the hardware notification LED.
More information, detailed specifications and the download link in the main thread