Any purchased app is always available to re-download again at no extra charge from the App Store. On that device storage page, look for apps you don't use.Tap them and select Delete App. How to Set Up Two-Factor Authentication.How to Record the Screen on Your Windows PC or Mac.How to Convert YouTube Videos to MP3 Files.How to Save Money on Your Cell Phone Bill.How to Free Up Space on Your iPhone or iPad.How to Block Robotexts and Spam Messages.