iDiary

iDiary is a small and easy to use application designed for you to log your thoughts and then keep them safe. Save your ideas, thoughts, emotions, and anything else you can think of, and know that it is secure. With iDiary's password system and encryption system, your diary will never be read without your permission. The program supports saving your diary in a text file and also allows you to store it in a diary file to import it on another machine.

Requirements:

Microsoft .NET Framework 3.5