It’s already November, which means that the deadline to finish off holiday shopping lists is fast approaching. ShopSavvy almost always lands on lists of recommended apps for shopaholics, and that reputation is well deserved. Primarily a bar code-scanning app, ShopSavvy has become a secret weapon of sorts for bargain hunters, thanks to its extensive database of prices and sales. Plus, its mapping features can help shoppers weigh whether it’s worth it to run to another store. Combined with options that let you make your own personalized lists, get equally personal suggestions and share deals with friends, ShopSavvy is an app to add to your list this holiday season. Free, for iOS, Android and Windows Phone devices.