Microsoft’s handy personal assistant app now has a widget, 3D Touch support, and more.

Microsoft's answer to Siri has arrived for iPhone users.

Siri will get some competition from Microsoft’s Cortana this summer.

Microsoft's "personal assistant" arrives on iOS and Android later this year.

Microsoft points out that even though Siri is now on the 5.5-inch iPhone 6 Plus, it's not necessarily smarter than Cortana.

Microsoft isn't quite done yet with its Cortana-touting and Siri-bashing ad campaign.

Microsoft has just released another ad pitting Cortana against Siri.

Siri goes head-to-head with Cortana in Microsoft's latest Windows 8.1 ad.

Microsoft's voice assistant for Windows Phone could find its way to the iPhone/iPod touch and iPad.

The personal assistant will reportedly arrive with Windows Phone 8.1.