iDailyDiary Professional includes a third-party spell-checker and thesaurus from Addictive Software. It also includes Live Spelling, so incorrectly spelled works are underlined as you type. You can switch off this feature through 'View - Preferences', choose 'Tabs' and un-tick the option that says 'Check spelling of words as you type'.

Below are some of the more well known language files available from Addictive. These should be installed in the iDailyDiary \Spelling sub-folder.

English - US ·Download·
English - UK ·Download·
English - Australian ·Download·
Dutch ·Download·
French ·Download·
German - Old ·Download·
German - New ·Download·
Italian ·Download·
Danish ·Download·
Spanish ·Download·

You can change the default language that iDailyDiary uses for its Graphical User Interface (GUI). Go to the View - Preferences menu, then choose the Language option. You can choose the language from the list and click Apply, iDailyDiary will update the GUI to the new language.

iDailyDiary automatically displays month and day names in the language of the local computer. To change the local language of the computer in MS Windows go to Start - Control Panel - Regional and Language Options, or if you prefer iDailyDiary to ignore the local computer regional settings and always display months and days in English you can set this through View - Preferences - Date and Time.

Below are the languages iDailyDiary has available. The language files are stored in the iDailyDiary \Language sub-folder, if you don't have a particular language installed or want to update to the latest version you can download it below.

Chinese (Simplified) Contributed by T. Y. Lee / M. Seto. ·Download·
Chinese (Traditional) Contributed by M. Seto. ·Download·
Dutch Contributed by Nora Ghaoui and M. Wassens ·Download·
French Contributed by S. Pierrard. ·Download·
German Contributed by K. Linnow. ·Download·
Italian Contributed by Luca Cassioli. ·Download·
Turkish Contributed by U. Madran. ·Download·
Japanese Contributed by SHU. ·Download·
Danish Contributed by S. Gabriel. ·Download·
Spanish Contributed by E. Ciancaglini. ·Download·
Polish Contributed by Zbipan Legionowo. ·Download·
Hebrew Contributed by R. Vinner. ·Download·
Hungarian Contributed by T. Kornyei. ·Download·
Swedish Contributed by M. Nilsson. ·Download·
Macedonian Contributed by V. Kockovski. ·Download·
Albanian Contributed by F. Bestar. ·Download·
Slovenian Contributed by B. Bensa. ·Download·
Portuguese (Brazillian) Contributed by P. Neto. ·Download·