You can now play QuizDuel in other languages using the same game app. This means that with each language you'd like to play in, you need to create a new, separate account and attach a different email address and password so that you can access it again when you want to switch languages.

Before switching languages, make sure to set up an email and password on the account you are currently using.

Then, go to "Settings" and tap "Logout". Select the language you want by tapping the corresponding flag and entering the username and password associated with that particular account.