Did you just get a new iPhone or iPad you’re not restoring from a backup? Want a fresh start on your old device? After you set up your phone or tablet, it’s time to restore your favorite apps and games.
How to Find Previously Installed Apps
If you want a fresh start with your new iPhone or iPad, it’s best not to restore from a backup. A freshly reset iPhone or iPad is bug-free, crashes less often, and gives you better battery life.
Still, you want to access all your favorite apps. Sure, you can search and download each one, but there’s a better way to get a list of all your previously downloaded apps and games.
Open the App Store and go to the “Today” tab. Tap your profile icon in the top-right corner to see your account information.
From here, tap “Purchased.”
On the next screen, tap “My Purchases.”
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Source : How to Restore Apps and Games to Your iPhone or iPad