CuSn Yep. Or another bank they should know, an old friend from the Netherlands: Triodos.
Granted, bunq's app is top, 25 accounts are nice, the Sofort integration is very cool, you have Apple and Google Pay, and some other stuff other banks can't really compete with right now. But not investing my money (and not receiving interest) was a big part of why I decided to pay money for my bank account. In a pack it's just 5 euros, reasonable enough. But in comparison... not cheap, either.
And now that they actually use the money to invest in stuff, I don't really see the reason for why the costs continue to be at that level.