No booking for others – DB Navigator Review

You can only book a ticket for yourself with this app. None of the DB policies are spelled out in the app. You either have to know them or you read them after you buy your ticket. For example, you need to bring the credit card with you that you used to book your ticket. As long as you're familiar with Deutsche Bahn, this app can be convenient. But if you are not familiar with DB policies, better to book your ticket on the website.
Review by Married to an American on DB Navigator.