Download iTunes Store purchases on PC
You can set up iTunes to automatically download items you purchase from the iTunes Store to multiple computers and devices. This way, all your computers and devices are kept up to date with the same new content, even if you don’t sync them.
Note: Some items may not be available for automatic downloading in all countries or regions.
You can turn on automatic downloads on up to 10 devices and computers, combined.
Turn on automatic downloads on an authorized computer
In the iTunes app on your PC, choose Edit > Preferences, then click Downloads.
Below Automatic Downloads, select the types of content (Music, Movies, and TV Shows) you want to download automatically.
When you make a purchase on another device or computer, the purchased item is downloaded to your computer automatically the next time you open iTunes, or when you choose Account > Check for Available Downloads.
Turn on automatic downloads on your iPhone, iPad, or iPod touch
Important: Before turning on automatic downloads on an iOS or iPadOS device, make sure you’ve signed in to the iTunes Store on the device.
On your device’s Home screen, tap Settings, then tap iTunes & App Stores.
Tap to turn on each type of content (Music, Apps, and Books & Audiobooks) you want to download automatically.