Happy customer of DKB, if I wouldn't have a great job already in Berlin I'd directly sign up. I, in fact, didn't know that you're based in Berlin, but good to know. 😉
The DKB app really needs push notifications for everything, like we (I was there, but not anymore) built it in the N26 app. For sure not the right place to request features, but, hey, here we are. 😄