How to change the interface language?
1/ On the main screen, Tap the three small dots in the upper right corner.
2/ Access the Main Menu and tap on "Edit Profile".
3/ Then, tap on "Language" and choose.
3/ Tap "Save Changes"
Don't confuse "Country" and "Language". Changing your country doesn't affect the interface language. For instance, you can reside in the United States and choose the Spanish language.
Please note that some apps in the Store are not available in all three languages. The app creator decides whether to offer it in one, two, or three languages.