I think it was an Applebees. They had a tablet at the table that you could punch your order in and pay with. It was sitting at the table - it had a game or something on the screen. After the waiter had taken our order I asked him what the tablet thing was.
“Oh - you can order with that - but nobody does.”
IIRC they wanted a $1 to play some game on it while you wait for your food. I wonder how many kids with games on their phones would play it?
My local Chili’s restaurants have those on the tables — called Ziosk. They only allow reordering of drinks you’ve ordered before plus appetizers, I think, but it does allow credit card swipe payment. A phone app would mean not having to touch their tablet, which may be germ covered, and could have a full menu.