They do but they focus so much on their apps that apps are becoming more practical than the websites to use for small tasks. They are even trying to usher people to use their apps for seed generators. And some other stuff like seeing instantly how much money was withdrawn from your account after a purchase only is useful with a phone app notification. Other “digital banks” like revolut or monzo simply does not exists outside of the app world and in terms of exchange rates and what not, they simply have no competition if you travel couple times a year.