Pisani has been using Amazon.com’s price-checking app for about a year and wrote that he always finds the prices on the app lower than at a store. But he never tried other popular apps.
So he tested five free apps available on both iPhone and Android phones to find the best deal for a new Cuisinart fruit and vegetable juice extractor. Pisani found the product at a Bed Bath & Beyond store, where it cost $149.99. He scanned the barcode from the box with his iPhone and started comparing prices. Here are the lowest prices he found for each app.