Find the item in your purchases, then redownload it to your device. If you don't see the item in your purchases, learn what to do. Games that you play with an Apple Arcade subscription don't appear in your purchases. To redownload a game from Apple Arcade, search for the game and download it again. You won't see Apple TV channels in your purchases. To redownload episodes or movies from an Apple TV channel, search for them in the Apple TV app and download them again.

Redownload apps

Looking for Mac apps? Try the Mac App Store.
If you subscribe to Apple Music, you can turn on Sync Library to access your music library and music that you've downloaded from Apple Music on all of your devices. If you turned off Sync Library, you can turn it back on. Just follow the steps below for your device. If Sync Library is updating or turned off, you'll see a message at the top of the Library tab in the Apple Music app.
Explore the Apple Music app
If you subscribe to Apple Music, use the Apple Music app to download songs or add them to your library. If you want to buy a song or you don't subscribe to Apple Music, use the iTunes Store. If you don't subscribe to Apple Music or want to buy a song, purchase music from the iTunes Store. Information about products not manufactured by Apple, or independent websites not controlled or tested by Apple, is provided without recommendation or endorsement. Apple assumes no responsibility with regard to the selection, performance, or use of third-party websites or products.
And Finder is where you can manage and sync content on your iPhone, iPad, and iPod touch. You can also access your iTunes Store purchases in these apps. If you have a PC, you can continue to use iTunes for Windows to manage your media library, make purchases, and manually sync and manage your iPhone, iPad, or iPod touch. Finder is the new place to back up, update, or restore your iPhone, iPad, and iPod touch. Just connect your device to your Mac and it appears in the Finder sidebar. And you can easily drag and drop files to your device. Have multiple iTunes libraries? Learn how to switch between them in macOS Catalina. Here's where you can find your entire media collection, access your iTunes Store purchases, and synced libraries. The Apple TV app is the new home for all of your movies, TV shows, and home videos — including your purchases from iTunes.