Summarize this article in one sentence.
You'll find this blue-and-white "A" icon on your home screen, in a folder, or by searching. It's the icon at the bottom-center part of the screen. If you know the name of the app you want to download, tap Search at the bottom-right corner instead, type the app's name, and then tap Search to find it. " This section is about halfway down the page. " This displays a list of the current most popular free apps available from the App Store. Every app has its own details page, where you'll find a description, developer information, reviews, and screenshots. Some apps will require a paid subscription to use certain features even though the download is free. If a free app has a subscription option, you can find out in advance by scrolling down to the "Subscriptions" section under "What's New." If you don't see this section, you won't need a subscription. Depending on your settings, you may be asked to verify your password, fingerprint, or biometric to approve the download. If you've already signed in to the App Store with your Apple ID, follow the on-screen instructions to confirm using Touch ID, Face ID, or your PIN to install the app. If you haven't signed in, follow the on-screen instructions to log in with your Apple ID username and password.  Downloading a new app will add the app's icon to your home screen. It'll be at the end of the existing icons—if you have a lot of apps installed, swipe left on the home screen until you find your new app. You can also open your new app by tapping the OPEN button at the top of the details page.

Summary:
Open the App Store . Tap Apps. Scroll down to "Top Free Apps. Tap See All next to "Top Free Apps. Tap an app to learn about it. Tap GET at the top of the app's details page. Confirm your identity.