Not only can you get cash back on groceries, but on other products as well such as those that fall under the categories of beauty, household, baby, health and even prescriptions. I came across Beam while transferring phones and searching for a new reddit app. You earn money in the form of cash back when you make purchases at various stores.
Actually, it prints out a voucher for you to redeem inside whatever store the kiosk is located in. But at least Uber drivers are recognised as "self-employed" contractors. Personalized financial coaching to help you manage your money like a pro.