You can change the language of your ProtonMail account in the web app and in the iOS and Android mobile apps. This article explains how.
How to change language in the web app
1. While logged in to your ProtonMail account at mail.protonmail.com, go to Settings -> Account.
2. In the “Language” section, click the button to expand the list of language options and choose your preferred language. The account language will automatically update.
How to change language in iOS
1. Go to Settings and tap the button under “Language”.
2. Choose your preferred language from the list. Your account language will update automatically.
How to change language in Android
In the ProtonMail Android app, the account language is set automatically based on your system language setting. It is not possible to set an account language different from the language used for your device.