Microsoft Hits Pause on Android Bridge for Windows 10

Microsoft has placed a moratorium on its Windows app bridge for Android, code-named "Project Astoria," which aimed to help developers port their Android apps to Windows 10 Mobile.

First announced at this April's Build conference, Project Astoria was part of Microsoft's "bridge" strategy to easily port non-Windows apps to the Windows platform -- a strategy that also included projects to port iOS, Win32/.NET and Web apps.

During Build, Microsoft showed how the Android app Lose It! could be ported to the Windows 10 Mobile platform to connect to Microsoft Azure and use the Windows Share features. The company also made the Project Astoria bridge available to select testers in August.

However, while the other porting tools, including those that ease iOS app portability, are still in some stage of development, the Android bridge has completely disappeared. Windows Central reported on Friday that multiple inside sources have confirmed that the project has been put on hold and that "the Android app porting is not going as planned."

While Microsoft has not said that the project has been scrapped, it did say that it won't be available anytime soon. "We're committed to offering developers many options to bring their apps to the Windows Platform, including bridges available now for Web and iOS, and soon Win32," said a Microsoft spokesperson in a released statement. "The Astoria bridge is not ready yet, but other tools offer great options for developers. For example, the iOS bridge enables developers to write a native Windows Universal app which calls UWP APIs directly from Objective-C, and to mix and match UWP and iOS concepts such as XAML and UIKit."

Microsoft declined to comment on how far Project Astoria had gotten in development or what the possible roadblocks might have been.

ZDNet's Mary Jo Foley speculated that the project might have been scrapped due to the unauthorized emulation of certain Android apps by testers. "I heard from one of my contacts that Microsoft pulled the emulation layer from Windows 10 Mobile builds around October, after some individuals had used the technology to run Android apps on Windows 10 Mobile without the OK of the individuals and companies that developed those apps," Foley wrote.

So far, it doesn't appear that any of the other three porting bridges have been scrapped. "Project Westminster," which allows for Web sites to be ported as Windows 10 Mobile apps, has already been released to developers. Meanwhile, the iOS bridge, "Project Islandwood," has been opened-sourced.

The final bridge, "Project Centennial," which brings Win32 apps to Windows 10 Mobile, is scheduled for testing in 2016.

About the Author

Chris Paoli is the site producer for and


  • The 2021 Microsoft Product Roadmap

    From Windows 10X to the next generation of Microsoft's application server products, here are the product milestones coming down the pipeline in 2021.

  • After High-Profile Attacks, Biden Calls for Better Software Security

    Recent high-profile security attacks have prompted the Biden administration to issue an executive order aiming to tighten software security practices across the board.

  • With Hybrid Networks on Rise, Microsoft Touts Zero Trust Security

    Hybrid networks, which combine use of cloud services with on-premises software, require a "zero trust" security approach, Microsoft said this week.

  • Feds Advise Orgs on How To Block Ransomware Amid Colonial Pipeline Attack

    A recent ransomware attack on a U.S. fuel pipeline company has put a spotlight on how "critical infrastructure" organizations can prevent similar attacks.