> Of course doing do would be disastrous for the supermarkets
I'm not sure this would be true, at least in the United States.
WalMart used to have a tool where you could scan your receipt in their app, they'd compare prices to competitors and if they found a lower price, you'd get a rebate.
I'm not sure this would be true, at least in the United States.
WalMart used to have a tool where you could scan your receipt in their app, they'd compare prices to competitors and if they found a lower price, you'd get a rebate.
It wasn't that popular or successful.
Can't find much info online, but here's an old discussion on Reddit: https://www.reddit.com/r/Frugal/comments/2x9ajh/walmart_app_...