You can select whether apps should be updated to the newest version automatically or manually. See how to install an app.
Step 1 of 5
Find "App and iTunes Stores"
Tap Settings.
Step 2 of 5
Find "App and iTunes Stores"
Tap App and iTunes Stores.
Step 3 of 5
Turn automatic update of apps on or off
Tap the indicator next to "Updates" to turn the function on or off.
If you turn on automatic update, your apps are automatically updated via Wi-Fi.
Step 4 of 5
Turn automatic update of apps via mobile network on or off
Tap the indicator next to "Use Mobile Data" to turn the function on or off.
If you turn on automatic update of apps via mobile network, your apps are automatically updated via the mobile network when no Wi-Fi networks are within range.