You will see a list of available languages. As of now, DB Navigator supports:
If your phone system language is set to a language that DB Navigator does not support, the app defaults to German.
There is no dedicated "Language" menu within the DB Navigator db navigator how to change language
Scroll down until you see (in English) or App-Sprache (in German). Tap it.
If you prefer booking your tickets on a computer or through a mobile browser, changing the language on the desktop site is direct and straightforward. Go to the official website: bahn.de. Look at the top right corner of the homepage header. You will see a list of available languages
Mastering the DB Navigator App: How to Change the Language on iOS, Android, and Web
If you are using an Android device, you can easily set the language preference for specific apps without changing your entire phone's system language. Follow these step-by-step instructions: Open your Android app. Tap it
Note: If your specific Android version does not support per-app languages, you must change your entire phone's system language to English to force the app to change. Why Is My DB Navigator Still Showing German?