From a Home screen, tap App Store .
To install apps, you must sign in with your Apple ID or create one.
To browse the App Store, tap Apps (at the bottom).
Scroll then tap the desired category (e.g., New Apps We Love, Top Categories, etc.).
To search for apps by name, tap Search (at the bottom) then enter the name of the app.
Tap the app.
Tap GET then tap INSTALL.
If there's a charge for the app, tap the price (e.g., $1.99) then tap BUY.
If you have a compatible iPhone with Face ID enabled, double-tap the Side button then look at the screen to authenticate.
If prompted, sign in to the iTunes Store to complete the install.