In September 2017, with the release of iTunes 12.7, Apple removed the iOS App Store from the desktop application. The reasoning was simple: most users downloaded apps directly to their devices. However, this change removed key functionalities that many users relied on:
Apple officially stopped signing this version for general public download, though the installer files are often still hosted on Apple’s servers or reputable software archives. download itunes 12.6.3
However, iTunes 12.6.3 also has some limitations: In September 2017, with the release of iTunes 12
