Quickly see how much space you have left on your iPhone.
With the iOS 8 Notification Center widget it's easier to keep an eye on how you are using your storage space on your iPhone.
To make it even easier, you can have either the Free Space or Used Space percentage shown on the app icon itself so you don't even have to open the app every time to see.
If you are not comfortable seeing the Free Space you can adjust the setting to see Used Space instead.
It's a simple app to help you keep an eye on your iPhone's storage space.