By Jim Karpen on Sat, 07/16/2011
Deals.by is a free app that aggregates location-based deals, such as free items, coupons, daily deals, and more, and locates them on a map. The app currently has information for 18,000 cities. You can also try their website, Deals.by, to see if they serve your city. You can filter the deals by category, and a social networking component lets you rate and share deals with others.