Last month Apple ripped the App Store out of iTunes for PC and Mac, alongside ringtones and other features, without bothering to tell anyone beforehand. Understandably, a few people have been upset ever since at the fact that iTunes 12.7 is less bloated than past versions. Bloat lovers have a reprieve, however. Apple has silently made iTunes 12.6.3 available for download, and this is a special version that still includes all of the old functionality - the App Store, iBooks, and ringtones. It's up for grabs for PCs and Macs, and is meant for certain businesses performing internal app...
Source: https://www.gsmarena.com/special_version_of_itunes_still_has_the_app_store_inside-news-27627.php