Items covered in this article:
- How to check what applications are using mobile data
- Wi-Fi Assist
- Automatic Downloads
- Enable Low Quality Image Mode in iMessage
- Disable Loading Remote Images in Mail
How to check what applications are using mobile data
From the home screen select Settings > then tap on Mobile > select Mobile Data.
You will be presented with a list of all the applications and a toggle button next to them.
Any apps you wish not to use mobile data, can be turned off from this screen.
Note: The app will will continue to work when connected to Wi-Fi.
With iOS 9 and later, you can use Wi-Fi Assist to automatically switch to mobile data when you have poor a Wi-Fi connection and vice versa.
Wi-Fi Assist is on by default. If you don't want your iOS device to stay connected to the Internet when you have a poor Wi-Fi connection, you can disable Wi-Fi Assist.
Go to Settings > Mobile > and tap on the toggle for Wi-Fi Assist.
If you use iCloud Drive for backing up files and data from apps, you can disable mobile data usage for back ups and leave it to Wi-Fi only.
Go to Settings > Mobile > tap on the toggle for iCloud Drive.
The Automatic Downloads option can sometimes use a lot of your mobile data if left as activated.
This means you won’t be able to download a new application or automatically update them when on mobile data. The application downloads or updates will only occur while connected to a Wi-Fi network.
Go to Settings > select iTunes & App Stores > ensure the Use Mobile Data option is disabled.
Enable Low Quality Image Mode in iMessage
Instead of sending an image in high resolution you can automatically send it as a compressed version saving your mobile data as a result.
Go to Settings > scroll down and tap on Messages > then tap on the toggle next to Low Quality Image Mode.
Disable Loading Remote Images in Mail
This controls whether or not images embedded in an email message will automatically display when you open/view the email message.
Go to Settings > then scroll down and tap on Mail > scroll down to the Messages section and tap on toggle next to Load Remote Images.