Thanks to the integration of Microsoft Translator, SwiftKey can now be used to perform real-time translation for more than 60 languages. Even more, those who install the Microsoft Translator app can also enjoy offline translation capabilities for SwiftKey — for example, when writing emails without being connected to the web.
https://www.notebookcheck.net/SwiftKey-for-Android-now-integrates-Microsoft-Translator.336358.0.html