Natural Notes is a Simple but at the same time very convenient little book. In it you will find everything you need, and can do either just write, or use it as the list of cases and notes. You can leave all entries in a row, or you can split it by categories and different folders. But if there is written something very important, then you may be able to create a backup, and then restore them. This application supports the most known formats, so that problems and conflicts with the formats from other applications you will not have.