I'm actually really enjoying this app to be fair. Managed to snag an energy drink, cat dental sticks and a kid's meal for free today in Sainsbury's while doing my regular shop.
I have a referral code if anyone wants to join. They get a large bag of Cabdury's buttons for free and I get £2 on my account, so win win!
My referral code is 5G5V49 and you can just download the Shopmium app from the app store. Easy peasy :)