Microsoft

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.

"The Word Flow experiment is now complete! We encourage you to download the SwiftKey Keyboard from the App Store," the company said in a note spotted Monday by Windows Central.

SwiftKey has been a popular third-party keyboard for iOS and Android users since its release in 2008. Microsoft acquired SwiftKey last year.