Microsoft has killed off the Windows Phone keyboard it released for Apple's mobile operating system a year ago.
Word Flow -- described by Microsoft as a "blazing fast keyboard" for "one-handed typing" -- has been pulled from Apple's App Store. Microsoft is suggesting people switch to its SwiftKey Keyboard app instead.
SwiftKey has been a popular third-party keyboard for iOS and Android users since its release in 2008. Microsoft acquired SwiftKey last year.