ShopSavvy 2.1.2 for Mac was available to download from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. The program lies within Lifestyle Tools, more precisely Shopping. This free Mac app is a product of Monolith Technologies, Inc. We recommend checking the downloaded files with any free antivirus.
From the developer:
ShopSavvy lets you check the price of over 60,000 retailers instantly, so you get the best deal every time. It works automatically when you visit product pages at any retailer. With this app, you know every retailer's price before choosing which to buy from. The prices and availability are checked automatically, in real time. Important details like the arrival date and the estimated shipping cost are also shown.
You may want to check out more Mac applications, such as myHome, Kcast Desktop or SplashShopper, which might be similar to ShopSavvy.