Microsoft is preparing to move its digital assistant into competitor territory.

According to Reuters, the company is prepping a standalone app for Cortana that will work on Android and iOS devices.

Microsoft is reportedly using an artificial intelligence project called “Einstein” to put together an advanced version of its competitor to Apple’s Siri and Google Now. The next version, which will be able to read and understand email, is being prepped for a fall release.

With the upcoming release of Windows 10, the company’s revamped operating system that works across PCs and mobile devices, Cortana will be coming to the desktop.

Microsoft has been busy lately bringing much of its most popular software to other platforms. The company now offers free versions of its Microsoft Office applications for Android and iOS.

The Microsoft Band fitness tracker that the company announced last year also works with both Android and iOS.

Microsoft’s willingness to work cross-platform likely comes from the company’s struggle to gain share in the mobile market, which is dominated by the iPhone and Android OEMs like Samsung.