The application has english default language. If you want to change default language, you can change it at app_provider.dart file. The file is on lib/provider/app_provider.dart directory folder. Change the value of _appLocale with the language code. For ex : ‘en’ for english, ‘es’ for espanyol, ‘id’ for indonesia. Beside that, also change in the fetchLocale() at _appLocale variable too.