Universal Date Converter -Archaic- app for iPhone and iPad

Description
Ultimate Date Converter (UDC) helps you to convert a date in one calendar system to another calendar.
See http://itunes.apple.com/app/ultimate-date-converter/id442500442?mt=8.

◉ This application provides all following calendars:
=== Archaic calendars ===
▸ French Republic (Julian, Gregorian and Equinox computation)
▸ Soviet (5 days)
▸ Maya
▸ Armenian
▸ Chinese
▸ Celtic tree
▸ Egypte antique
▸ Swedish
▸ Slavic-Aryan
▸ Byzantine
▸ Florentine
▸ Pisan

=== Still in use ===
▸ Gregorian
▸ Julien

◉ Additional features:
You can easily compute the number of days between two dates of two different calendars.
You can as well export a date converted in all calendars format to Note or Mail.