Ultimate Date Converter (UDC) helps you to convert a date in one calendar system to another calendar.

◉ This application provides all following calendars:
= Japanese calendars =
▸ Anno Domini based
▸ Jimmu Tenno
▸ Nengo Era

= 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.

What’s New

Version 2.2.8

◉ Bug fixing:
▸ Remove Facebook's button (iPad only)
◉ New features:
▸ iOS10 and Xcode8 support
▸ Remove button 'sort'
▸ Remove iAds (deprecated)
▸ Remove the possibility to change the font of characters

Ratings and Reviews

Uevf ,

Good, but a few issues

Some issues are no romaji option for the Japanese eras as some Japanese don't even know these readings of the kanji, shows day name as the word month in Japanese. Today's date is a day ahead of me, it should sync to the local time on the iPad. The developer needs to sit down with a Japanese and a westerner to qa this app for its purpose, seems like it was made with a one size fits all attitude which just doesn't work for this as I notice the developer has many conversion apps, this is not good as I got this just for the Japanese conversion aspect


Franck Sauvaire
23.7 MB

Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.


English, French, Russian

Age Rating
Rated 4+
© 2011-2017 Franck Sauvaire


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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