The primary language of the application is English and so all function keys, instructions, and descriptions of sounds are given in English. However, the users may decide to display the above elements in their own native language, just as they may decide to see all the practiced English words, phrases, and sentences translated into their selected native language. This is possible thanks to foreign language add-ons which will be included in the application one by one. Each time a new language is added, the application will be updated free of charge and the users will be able to select from the list of foreign language add-ons available in the language menu. The list of foreign language add-ons that will be available soon is given on the right.