In addition to the makers of some of the most popular Android soft-keyboards like Swype, Fleksy and SwiftKey – which have all confirmed building downloadable keyboards for iOS 8 – two more companies have now jumped on the bandwagon: KeyPoint and Whirlscape, the respective makers of the Adaptxt and Minuum Android keyboards.
http://www.idownloadblog.com/2014/06/06/adaptxt-minuum-ios-8-keyboards/