I love all these apps that let you earn money for grocery shopping and other things. I found ANOTHER one. This one is unique with the way you can refer your friends to get cash back and earn rewards for it. You can earn free products from different brands as well.

First download Shrink Rewards. You can download it on your iPhone/iPad or Android device. After you sign up can enter my referral code IAFO to get a bonus 1,000 points per brand you enter it for. Make sure to put the promo code for each one to get the 1,000 point bonus.

After you unlock the different brands you can get exclusive rewards like cash back and $ off. Some of the brands let you earn points by tweeting and you can redeem for cash back as well.