I've looked at many shopping apps and don't think I've seen exactly what I want. It would be like a small excel program in which you could enter the prices on items you buy. This would give you a mobile database for comparison shopping. It would tier, so that say you would hit Produce on the first screen which would then take you to your list of items, say red delicious apples and watermelon, with the most recent best price entered. If this sounds like something you are using let me know what app it is. If there is an excel like app out there, please let me know likewise.