The app 'choical' is an easy tool to input your event to your calendar app.
If you have ever suffered how the calendar app requires you too many taps,
'choical' willingly helps you!
You can easily add your event with natural word such as
'running tomorrow morning' or '20130830 day off'
'choical' needs only 2 taps, in minimum.
The prefix 'choi' stands for 'petit', 'a litle', 'a bit' in Japanese,
As this app requires you least effort, the suffix 'choi' is capped.
Choical is studying English ...
iPhone app is also available.
iPhone version choical is more gracious.