In a brief post on Apple’s Developer news site, the company announced that it is adding support for app bundles to the Mac App Store. According to the post:
…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.
The post points to developer documentation on creating app bundles that that has been revised to mention Mac apps. The process for setting up a bundle, which will allow developers to offer up to 10 Mac apps as a single purchase, appears to be the same as it is for iOS developers. Unfortunately for those developers with iOS and macOS apps, it does not appear possible to create a mixed bundle of iOS and Mac apps.