If the calling number of the received text message is the number registered in the VIP list, this application informs the user.

[Description of operation]

1. The first unread SMS/MMS notification will be activated after 2 ~ 3 seconds from the time when the screen of the smartphone is automatically turned off after receiving a message.
2. However, if the user presses the power button to force the screen lock after receiving a message, the notification is automatically stopped and no longer works.
3. If unread SMS/MMS notification is not working, you will see on the upper banner why the app did not work when you run the application