Yes. We introduced QuarkXPress in the Mac App Store
last year. As some of our customers have asked for subscriptions, and QuarkXPress sold by Quark and authorized resellers is a perpetual license. Therefore, exclusively in the Mac App Store, QuarkXPress is now available as a subscription; offering both monthly and yearly options.
The subscription in the Mac App Store (MAS) ensure that you always have the current version of QuarkXPress, as long as the subscription is active.