The app has you drive all over the city, first store I went to said the gas was 2.79pg thought it was some kind of sale to drumb up some business because the gas station is surrounded by road work, when I get there it says credit card machine down cash only, gas was actually 3.99pg , then I drive another two or three miles to a place that's supposed to be 22 cents off per gallon after I pump the gas and get the receipt the app updates and tells me it's only 12 cents a gallon I save for cash back