The Calendar module appears and is used as most of the calendars available for desktop computers or mobile devices.
With the difference that every single event is encrypted with a random keyword before being saved. Different events are stored with different keywords. This makes it practically impossible for intruders to use your data.
In addition, particularly sensitive appointments or recurrent events can be marked as "private" and will disappear from the screen at the hit of a button (or automatically if the app has not been in use for a couple of minutes). To show them again you are required to enter the PIN or (after entering a wrong PIN) the main password.
Most basic calendar functions are available. Considerations about decryption speed and database size have induced us to leave out some fancier features (attachments, images etc.) or to implement them at a later date in upcoming releases.