As well as automatically syncing birthday dates from Address Book, Dates to iCal can sync anniversary and custom dates. It can add up to five alarms for each birthday in iCal and the same number for anniversaries. It gives the option of only syncing from one Address Book group. This application also allows for the titles of the events sent to iCal to be modified to the user's preference including the age of the event. It also makes it easy to sync birthdays and anniversaries to an iPhone. Dates to iCal has extra title formatting 'tokens'. and is localized into English, French, German, Italian, and Spanish.