MitID and MobilePay are almost essential for living in Denmark.

MitID (the service) offers a physical code thingy, and I have one. It works, but you need to bring it with you everywhere you might need to login/authorize.

MobilePay is very convenient when living cash-free. Want to buy a glass of honey a colleague brought to work? Pay for street food? Transfer money to your kids?

Both of these apps are (near) impossible to use on non-stock Android phones.

I've used an old iPhone 8 for these two apps, but that solution is coming to an end soon.