You can change your preferred language on the Wise website. To change it on the app, you'll need to change your phone's language settings.
Web and Android
Go on your name at the top
Go to Language and appearance
Select Language
Choose your language from the drop-down and Save
App
On the app, you’ll be directed to your phone's Settings to change the language. This change will then reflect on the app. You can't change within the app directly.