The iTunes app is no more in macOS Catalina, and it’s left a lot of us with questions on how things will work going forward. Thankfully, Apple has created a support document that explains all of the upcoming changes.
As we already know, Apple is planning to split iTunes into three apps in macOS Catalina: Music, Podcasts, and TV. One of the most frequent questions concerns device management and syncing, which is currently done through iTunes. In Catalina, Apple is transitioning device management functionality to the Finder app, and when you plug an iOS device into your Mac, it will be listed as an available device on the left side of the window, with all of the same controls and information.
The Music app is going to feature all of the music that you've imported or purchased, and don’t worry the iTunes Store is still going to be available in the Music app for making music purchases. Apple Music will also be available in the Music app right alongside your purchased music or other imported music. iTunes Music purchases will also continue to be available on iOS. Likewise, TV shows and Movies that you've purchased or rented from iTunes will be listed in the upcoming Apple TV app, and it will also be used for future purchases and rentals. All of your podcasts will be transitioned over to the Podcasts app, while audiobooks can be purchased and accessed in the Apple Books app for Mac.
Last but not least, iTunes Gift Cards and iTunes credits will be usable in the new TV and Music apps and in the App Store. Looks like that’s the one thing that’s gone unchanged.