In the past, Lightroom Mobile did offer a $9.99/1TB/monthly plan which did include Lightroom desktop. However, we are not currently selling this plan to new or re-subscribers. All plans currently sold provide access to only Lightroom Mobile (all phones and tablets), but not desktop.
If you need Lightroom Desktop as well, you can purchase a desktop plan from Adobe.com or the Mac or Windows App Store directly. Once you have a desktop plan, you can then cancel your mobile plan that you purchased via the iOS or Google App Store.