Here is comprehensive content covering , including what it is, why it remains significant, how to identify it, and where to find it. Overview: The "App Manager" Version iTunes 12.6.3 is a legacy version of Apple’s desktop media management software, released in September 2017 . It is the last version of iTunes that officially includes the App Store for managing, downloading, and syncing iOS apps (.ipa files) to iPhones and iPads locally on a Mac or PC.