N26 is a German mobile-only bank, with no physical branches. It is a member of the German Banking Association and is regulated by the German Federal Financial Supervisory Authority (BaFin). The app is in English and the support staff English pretty well. I have used the bank for more than 3 years now.
Referral code: maksimd7489
Referral link: https://n26.com/r/maksimd7489
Get Safe is a digital insurance company, all operations you can achieve just using the app. The app is fully in English (also German is supported) and when I contacted the support they answered very well in English. I have used it for more than 2 years now.
Referral link: https://www.hellogetsafe.com/en-de/referral?n=Maksim&r=T5UT-8FVX&s=1
Trade Republic is a German online broker, with no physical branches. What I like most is that the broker’s support, app, and website are full in English and pretty easy to use. If you want to buy a stock/ETF, the cost is only 1 euro. In addition, the broker allows instant deposits using Apple/Google Pay (1% fee). I use it as Savings Plan - in that case, I only need to pay a fee for the deposit.
Referral link: https://ref.trade.re/dcbjksfh