How to change Mixin Messenger's language?

Normally Mixin Messenger's language follows the system language. Of course, you can change it manually. It now supports English, Chinese Simplified, Japanese, and Chinese traditional.

Android:

Tap the Avatar > Settings > Appearance > Language to change the language.

iOS:

Tap the Avatar > Settings > Appearance > Language; it will lead you to the system Settings > Mixin > Language, then change it.