Here in Iceland they've popped up primarily for outdoor seated areas. Presumably so the wait staff don't have to keep an eye outside and inside particularly as

Here in Iceland they've popped up primarily for outdoor seated areas. Presumably so the wait staff don't have to keep an eye outside and inside particularly as the outside seating tends to be more densely packed. There seems to be a pretty standardized web app as well which lets you order and pay in the app and then your food and drinks just magically appear. That said the last time we used it was a bit of a fiasco as the web app was out of date with the actual menu. So we ordered and paid then the waiter had to come out and swap a bunch of stuff around. I have no idea why they didn't just take the QR codes down until they fixed things but there you go.