App works great. BUT I will give 2.5 stars because of these reasons. Your only allowed to use high end gas stations, 76, Chevron, Mobile, Union, Valero. And what makes no sense, the prices they have posted for the gas stations are like ex. $5.45, $5.59 or $5.69 then minus the APP discount. Well those prices they post on the app are CASH prices. All those gas stations charge an extra $0.10 cents when using debit or credit card. And of course you can only use a Debit or Credit Card. Misleading!