Heads-up Notifications is a Very interesting application of the system. This simple application can become a very important part of your smartphone. It may seem quite ordinary, however, contains a lot of settings. For example, you can set your notifications so that the system could not display them in the night. Agree, it is very inconvenient when in the middle of the night you begin to receive messages in the mail about that in discount stores, or something like that. And your smartphone starts beeping without stopping, to avoid this just turn on night mode, and at certain hours, this app does not prompt you the alert. There are as many other useful functions, install and see for yourself.