SwiftKey Keyboard for iOS updated with theme store and improvements

SwiftKey's innovative keyboard app has expanded its selection of keyboard themes on iOS, with a small price tag. The free app just added a new selection of "freemium" themes to download. SwiftKey's Android app dropped its $3.99 price tag last year in favor of a in-app purchases; now, the iOS version is following its lead. SwiftKey only debuted on iOS …