It’s an app that allows you to run Windows apps on your Mac. Parallels Desktop FAQs What is Parallels Desktop? The content in the quick summary box above serves as a short version of my findings and conclusions. In this Parallels review, I’ll share what I like and dislike about Parallels Desktop. This review reflects my use of both versions and all of the screenshots are from version 13. The new version was released last night, so I immediately upgraded. For the last week, I’ve been putting it through its paces, installing Windows 10 (purchased just for this review) and several other operating systems, and trying just about every feature in the program. I was provided a review license and installed an earlier version on my iMac. See the Alternatives section of this Parallels Desktop review. So I found myself using a combination of dual boot, virtualization (using VMware and VirtualBox) and Wine. I enjoyed the change, but still needed certain Windows apps on a regular basis. After using Microsoft Windows for over a decade, I made a deliberate move away from the operating system in 2003. Reasons Behind My Reviews and Ratings Parallels Desktop Review: What's in It for You?