The Neddi app allows you to create your own notebook. In addition to this, you can also store and organize your notes, lists, and any other kind of data that you want to keep in the app. 

It is an extremely simple and user-friendly application. The main window consists of the app name, the current date, and a few buttons. These buttons allow you to save, delete, or open the data that you want to keep in the app. You can also choose to rename the current date. 

The second window is the list of functions. You can add as many functions as you want. Each function has a name, a short description, and an icon. This icon allows you to know what kind of function it is. You can also add the functions as a group.