When you are receiving a call or text message, there is no way for you to know who is calling you unless you look at your phone. It is a good thing that Flash Alert - Flicker Light can help you in situations where you cannot feel the ringtone or vibration. This is a useful app for people who have problems with their phone in that it can help them to know who is calling them by looking at the screen.

This is a simple app that can help you to know the details of the call or text message.