The real-time translation feature is powered by SwiftKey, a company that Microsoft acquired in 2016.
Once users tap the Microsoft Translator icon on the SwiftKey keyboard, the app translates as they type and translates incoming messages that users copy.
The app also remembers users' preferences, eliminating the need to scroll through the full list of the more than 60 available languages to select which languages to translate to and from each time the feature is engaged.
The translation capability is available offline to SwiftKey users who have also downloaded the Microsoft Translator app, enabling translations of emails composed.
Microsoft Translator is a part of Azure Cognitive Services, a collection of AI algorithms. The translation feature is currently available for users of SwiftKey on Android devices, a user base that data indicates is global and highly multilingual, Microsoft said.