If you've already bought an app and can't find it in the App Store, or if Apple has removed it from the App Store, you may not be able to get it back. However, most apps can be redownloaded from your Apple ID account. On iOS 15 and iPadOS 15, you can easily find, search and redownload apps that you've previously purchased from your Apple ID account in the App Store itself. To view all the apps you've purchased on iOS 13, you need to go to your iCloud profile, which is visible in the App Store itself.
Note that this tab includes both apps you've purchased and apps you've downloaded for free. When downloading previously purchased apps, keep in mind that some of them may not be suitable for re-downloading. Now that you know how to find your app's purchase history, you can easily download some of your old favorites.
