Microsoft SwiftKey is a virtual keyboard app originally developed by TouchType for Android and iOS devices.

[10] In September 2013, SwiftKey announced a series B finance round totaling $17.5 million led by Index Ventures, along with Octopus Investments and Accel Partners.

[23] Starting with iOS 13, the system keyboard came with a built in QuickPath mechanism, which works similarly to SwiftKey's swiping feature.

[27] The app includes the word prediction and auto-correction features, familiar to the Android product, SwiftKey Cloud backup and sync and personalization, and a choice of color themes.

1 in the free US App Store charts and the company confirmed it had been downloaded more than 1 million times on the first day of launch.

[29] This allows developers on multiple platforms and programming languages to access SwiftKey's core language-engine technology for their own UI or virtual keyboard.

It is a virtual keyboard for iOS, Android, Windows Phone and BlackBerry devices that offers next-word predictions based on real-world clinical data.

[31] In April 2016, SwiftKey released a keyboard that emulated William Shakespeare's speech called ShakeSpeak in observance of the 400th year of the author's death.

SwiftKey responded by disabling cloud sync for word suggestions and releasing an update to mitigate the issue.