Below is the page I have dedicated to shopping apps.Two that I am loving and using frequently are below. Both are FREE.
Best Deal: Is a comparison chart that you would use when you buy things like detergent etc. I use it mostly when buying Perrier because it comes it 4 packs, 6 packs and liters and I want to see what the best deal is. This app gives me that info quickly!
This app is great for shopping sales. It allows you to put in the sale price and also the sales tax that way you get a bottom line number.
Both great apps for the upcoming shopping season!