Apple has announced — via its developer web portal — that app bundles now support Mac apps and free apps with subscriptions. 

“App bundles make it easy for customers to buy up to 10 of your apps in a single purchase,” Apple says. “And now, you can create app bundles for Mac apps or free apps that offer an auto-renewable subscription to access all apps in the bundle. Learn how to set up app bundles and effectively market them on your App Store product page.”