A free app for Android, by Khaleel Alghamdi.
Memory and Storage Info Widget is an application that will help you to manage and monitor the information on your phone’s storage. With this app, you will be able to check the amount of free space, the type of files, and the current battery level. In addition, you will be able to choose the type of display to use (i.e. icon or thumbnail), as well as the font size.
The widget is designed in a simple and intuitive way so that it is easy to use and understand. You will only need to install it on your home screen, and it will start to show you all the information you need.