Smart Search brings iOS 8 inspired enahncements to Spotlight search on jailbroken iOS 7 devices. A range of different sources can be searched, with results leading directly to any relevant, installed apps. This greatly improves the speed and versatility of the stock iOS Spotlight.
Once installed, a list of Plugins will be enabled under Settings -> Smart Search. These will correspond to available buttons within the Spotlight itself. Swipe down on the home screen to see these buttons, which will direct Smart Search to send the search term to the right place.
Search options include iPhone, App Store, Google, Spotify, TMDb, Wikipedia, YouTube, and the iTunes Store. Of course, Plugins can be disabled if desired. More search Plugins are in the works, so Smart Search's capabilities will be expanded over time. This jailbreak tweak previews similar improved search capabilities that are coming to iOS 8 in September.Smart Search is available on Cydia from the BigBoss repo for $2.49. Jailbreaking iOS 7.1.x is now possible with Pangu. Check here for instructions on how to jailbreak iOS 7.0.x with evasi0n 7. You can also find out how to purchase and install Cydia tweaks with this guide.