I tried using shop kick app at spot, very user unfriendly.
The walk ins can be a pain in the butt if you don't remember to open the app before entering the store. Idk why they made it work that way. My GPS knows I'm in the store, so why is it necessary to start the shopkick app up from outside? That bothers me, but otherwise, it's a pretty simple app.
Sometimes it still works if I open the app just inside the entrance though.