NightDream is a clock app with very low battery usage. The best thing about it is that it works on all devices with Android 4.2. or higher. It can be used as a dock clock or night clock. The only thing that makes it different from other similar apps is that it can also be used as a night clock. It can also be used to set up and configure your phone for your needs. It allows you to set up the notifications and to enable in-app purchases. It also gives you the ability to disable them. You can also set the icon of the app. This can be done using the notification center.