Developers earlier also sounded off on the "Flutter vs. Xamarin" question, with one noting "Flutter has MUCH better performance than Xamarin Forms" and another saying "Flutter will compete with ...

After Flutter's beta release, the tech media were quick to cite its challenge to Xamarin, as the MSPoweruser site said in an article that claimed "Flutter will compete with Microsoft’s cross-platform ...

Flutter, Google's new mobile UI framework for creating native mobile apps, is already being targeted for Xamarin development in an open source project on GitHub championed by a handful of developers.

Flutter is similar conceptually to Microsoft's Xamarin, a $400 million acquisition in 2016 that helped Microsoft rope developers in to its Microsoft Azure cloud.

Frameworks that enable cross-platform development are rising in popularity. Used by roughly one-third of mobile developers, top frameworks include React Native, Xamarin, and Google’s Flutter.