Install Pryzi. Sign in with your phone number and a one-time code. No password.
Open the app and scan the QR you just saw. It saves to My QR. Remove it anytime.
When the store drops the price, you get a push with the deal price and how long it lasts.
You liked it and did not buy it. Save it. Hear when the price drops.
Scan the featured tag on the way out. Deals from that store land in the app.
Ordered once. Scan the tag and get the next deal from that place.