What’s the difference between the QAS and the SAS? Which should I order? The short answer is that the QAS is the more useful of the two, and you should always order it when possible. For a more detailed answer, check out the blog post we wrote answering this question. By Andre Kiss|2021-02-16T22:19:55-05:00February 16th, 2021| Share This Story, Choose Your Platform! FacebookTwitterRedditLinkedInWhatsAppTumblrPinterestVkEmail About the Author: Andre Kiss Leave A Comment Cancel replyComment Save my name, email, and website in this browser for the next time I comment.