The iPhone restore functionality is a lifesaver if you ever suffer data loss or if you are upgrading to a new iPhone and it doesn’t restore all your apps. If your most recent backup was made before the installation or purchase of software from the App Store, those apps are not included in the restore. Instead, you need to manually redownload the apps from the “Purchased” section of the App Store. Writer Bio

How to Redownload Apps After Restoring Your iPhone - 18