Apple releases new build of iTunes allowing users to install apps from their computer once again
Not everyone was happy with this move. According to Apple, "certain business partners might still need to use iTunes to install apps." So Apple has pushed out iTunes 12.6.3 which brings back the functionality allowing users to install apps and ringtones for their iOS devices from the desktop. Actually, clicking on the sourcelink will take you to the Apple support page where you can install this so-called "business edition of iTunes" on a Mac, 32-bit PC or a 64-bit PC.
There is one major caveat. Installing iTunes 12.6.3 means that iOS users will no longer be prompted when a new version of iTunes is ready to be installed. Instead, they will have to upgrade to new iTunes builds manually. After installing iTunes 12.6.3, an existing library of content will have to be downloaded to this version using the Create Library and Add to Library options.
The business edition of iTunes is compatible with iOS 11, Apple iPhone 8, iPhone 8 Plus, and iPhone X. There is no technical support being offered for this version of iTunes, and it is unknown how long Apple will be making this build available.
If the ability to manage the apps from your iOS device(s) outweighs the caveats, you might want to install iTunes 12.6.3 on your desktop PC or Mac today.
source: AppleSupport via MacRumors