Apps in the iOS and Mac App Stores have begun displaying details on Family Sharing, letting users know whether or not the feature is enabled for specific apps ahead of the launch of iOS 8 and Yosemite.
A new Family Sharing listing has appeared in the Information section for each app, as noted by German site iFun.de [Google Translate]. For developers that have turned on Family Sharing, the section displays a "Yes" under the Family Sharing heading, while apps from developers that have opted not to allow Family Sharing or have yet to turn the setting on display "Not Available."
Certain apps, like Sketchbook Mobile display a "Yes" for purchases after a set date, indicating that developers have the option to only allow Family Sharing for new purchases.
First announced during June's Worldwide Developers Conference, Family Sharing for iOS 8 and Yosemite lets families of up to six people share content like apps, iBooks, music, movies, and more, across all of their iOS devices, provided their iTunes accounts use the same credit card. Family Sharing also lets families share photos, videos, a calendar, reminders, and more, to keep everyone in the family connected.
Though Family Sharing is not yet fully functional, Apple has made steps towards implementing the service throughout the iOS 8 and Yosemite beta testing period. Shortly after WWDC, Apple began asking developers to enable the feature in their apps.
Early iOS 8 betas saw the addition of Family Sharing in the iCloud section of the settings app, and iOS 8 beta 2 and an Apple TV beta laid significant groundwork for Family Sharing, adding a new section for "Family Purchases" to the iOS App Store's purchased tab and a new iCloud Family setting for the Apple TV.
Family Sharing is expected to be implemented and fully functional ahead of the public release of iOS 8, which will be available in September after the upcoming iPhone event.