Windows 10 developers can now bring their WinUI 3 apps to iOS, Android, macOS, and the web

iPhone X
iPhone X (Image credit: Al Sacco | Windows Central)

What you need to know

  • Uno Platform 3.6 launched today, and it supports Project Reunion 0.5.
  • Project Reunion 0.5 supports WinUI 3 and is the first production version of Project Reunion.
  • Developers can now use Project Reunion 0.5 to make modern apps with WinUI 3 and Uno Platform to bring the code of those apps to other platforms.

With the rollout of Project Reunion 0.5 and Uno Platform 3.6, developers can create modern apps on Windows 10 using the latest from WinUI 3 and then bring that over to all other major platforms.

In addition to support for WinUI 3, Uno Platform released additional controls for enabling end-user interactions with date and file input controls and a new Cupertino theme in the Uno Platform Gallery. Uno Platform already provided Fluent and Material themes before the update to version 3.6.

Uno Platform and Microsoft worked hand-in-hand for these releases, and it isn't a surprise that Project Reunion 0.5 and Uno Platform 3.6 came out within hours of each other. Speaking of that collaboration and the new technologies, Francois Tanguay, CEO of Uno Platform, said:

We are delighted to see WinUI 3 launch as part of Project Reunion and alongside WinUI. We are very proud to work closely with Microsoft to ensure Uno Platform can provide day-zero support for WinUI 3 and bring WinUI-built applications everywhere, including Web, Linux, macOS, iOS and Android.

Microsoft Partner Group program manager Mike Harsh also shared his thoughts:

With WinUI 3 – Project reunion 0.5 we are making investments to enable developers to improve Windows experiences. We are pleased to see open source projects like Uno Platform take that mission further by extending the reach of WinUI to Web, Linux, macOS, iOS and Android.

With support for every major platform, including the web, developers can now utilize Uno Platform to bring code from modern Windows apps built with WinUI 3 to just about every type of device that people work with.

Sean Endicott
News Writer and apps editor

Sean Endicott is a news writer and apps editor for Windows Central with 11+ years of experience. A Nottingham Trent journalism graduate, Sean has covered the industry’s arc from the Lumia era to the launch of Windows 11 and generative AI. Having started at Thrifter, he uses his expertise in price tracking to help readers find genuine hardware value.

Beyond tech news, Sean is a UK sports media pioneer. In 2017, he became one of the first to stream via smartphone and is an expert in AP Capture systems. A tech-forward coach, he was named 2024 BAFA Youth Coach of the Year. He is focused on using technology—from AI to Clipchamp—to gain a practical edge.