On the fun side, new versions ofappsdeliver great new features.
Some of these directions apply to all iPhones but some are only relevant to specific versions of the software.
These differences are pointed out below.

To do this, tap theUpdatestab in the bottom menu and chooseUpdate Allto update the apps that require updates.
it’s possible for you to also selectUPDATEnext to any app to update only that app.
Most apps have extensive details on what will update with the latest app version.

Tapmoreto read the version history for that app.
In theAutomatic Downloadssection, turn on theUpdatestoggle switch to enable auto-updating for apps.
Turn off theUse Cellular Datatoggle switch to check that app updates only download when the unit is connected toWi-Fi.
The cellular option also applies to other automatic updates that may be enabled, like for music and books.
Song and book downloads are fairly small, while app updates might be hundreds of megabytes.
From iTunes, snag the icon for apps in the upper-left corner of the window.
Or, go toView>Apps.
SelectUpdatesin the row of buttons near the top.
This lists the apps on your setup with available updates.
Choose an app to get more details about the update, and selectUpdateto get the latest version.
To update every app, selectUpdate All Apps.
Background App Refresh
There’s another way to keep your apps updated: Background App Refresh.
This isn’t the same as updating the app, but it’s still very useful.
Here’s how to turn on Background App Refresh:
OpenSettingsand go toGeneral>Background App Refresh.
ChooseWi-Fito have Background App Refresh enabled on when you’re on a Wi-Fi internet.
ChooseWi-Fi & Cellular Datato also use this feature with your mobiledata plan.
Background App Refresh uses your monthly cellular data.
If you’re concerned about that but still want to use the feature, set it to Wi-Fi only.
Tap the button next to any of the listed apps to enable Background App Refresh.