This program could be very good if the developers added a few extra features, but for now, I would probably use TI's Organize App instead.
Things that were good in this calendar program:
-Very easy to view months
-special days are marked and therefore easy to see
-Generally good GUI
-The AppVar can be set to archive itself when you exit the program, which is handy in case of an accidental RAM clearing
Things that need improvement:
-The daily notes
-they are not auto-sorted by date/title unless you specifically use a command to do so, and sometimes it fails to correctly sort them anyway
-dates are not shown on the list of daily notes, which is frustrating because it means you must click on the note to see the date.
-user cannot input time unless they type it directly into the not
-needs to have an 'assignment' option where the user can a) indicate if the note is an assignment/project of sorts and b) be able to check some sort of box or cross out the assignment once it is done
-improve on TI-Organize App's address book (or at least just have an address book)
-improve GUI(?) (ie, list more commands onscreen so that the user does not have to memorize what all the buttons do, or have a help feature).
To reiterate, this was a generally good program that could be awesome if the programmers implemented some more features and improved the current ones.