Bad first experience during verification
If you newly moved to Germany and can't speak German yet, better avoid this company. Their video verification agents can only speak German and will question you like "how did you get a job in Germany if you cannot speak German" and will hang up even if they can speak English. I got hanged-up 4x already because I can only speak with them in English.

Update 24.03.2020:
> I signed up with another account while my phone was in English, and finally I was connected to a English-speaking agent. I was able to get verified finally. So far, the app looks okay and time will tell how useful it will be for someone who already uses Revolut and Transferwise. Thus, bumping the rating a little bit and changing the review title.
> I was informed that the verification agents are not N26 employees but are outsourced from a company called IDNow. But even so, N26 has the responsibility to maintain and monitor the quality of service being provided by these third party providers who are doing work on behalf of N26.