Multi language store translations
The app does support multi language stores. When the page loads the app will select the right language translations based on the current selected store language.
If you still use the old method for Custom language translations make sure to remove the <script> tag for the app to use the new translations.
In the app, navigate to the "Settings" tab.
The main language is used as the default for all languages that have not yet been translated.
You can freely edit all the translations to better fit your store:
You can edit the language for which the translations are displayed, or if a certain language is not translated yet, you can add an additional language:
You can also add your own translations and use them in the options configurations, to learn more visit: How can I translate product options?