Since about half a year video ident is gaining traktion, which is basically the same but via video chat. Still not free but probably cheaper, less effort on you

Since about half a year video ident is gaining traktion, which is basically the same but via video chat. Still not free but probably cheaper, less effort on your side and usable while travelling (as long as you don't loose your passport). I think Revolut and some other services even use the NFC chip in passports (yes, it can be read by regular smartphones) to identify you almost automatically.