Updating an App on the iPhone X
Your iPhone X will require some updating from time to time. Every so often (or, for some apps, far too often), the developer of an iPhone app releases an update. If one (or more) of these is waiting for you, a little number in a circle appears on the App Store icon on your Home screen as well as on the Updates icon at the bottom of the screen. Tap the Updates icon if any of your apps need updating.
If you tap the Updates icon and don’t see a Pending Updates section at the top of the screen, none of the apps on your iPhone requires an update at this time. If an app needs updating, it will appear in the Pending Updates section with an Update button to its right. Tap the Update button to update the app. If more than one app needs updating, you can update them all at once by tapping the Update All button in the upper-right corner of the screen.
If you try to update an app purchased from any iTunes Store account except your own, you’re prompted for that account’s ID and password (unless you’re part of a Family Sharing group). If you can’t provide them, you can’t download the update.
One last thing: To see all of your purchased apps, tap the little circular picture of yourself in the top-right corner of every section except Search, and then tap the Purchased button.
Finally, if you’re using Family Sharing, you can see and search for apps purchased by family members as well.