Project Office X version 1.1.6 becomes s a unique app with different subscription options combined into one Subscription group.
Now when subscribing the app you can decide which option to choose: only one device version (Project Office X for Mac or Project Office X for iOS) OR a bundle (Mac + iOS version).
This feature is available in the App Store only.
A subscription group is a collection of subscription products that has some specific properties. No two products in a subscription group can be active at the same time. A free trial or introductory price can only be used once per group.