If you've bought yourself a new iPhone, or updated to iOS9, you may have noticed that your data allowance is being ravaged. That's nice, especially if you've only just been able to switch your phone back on after it kept bloody crashing all the time.
If you have noticed (or haven't, in which case, you might have an unpleasant surprise when you get your next bill), there's an easy workaround for the problem.
The issue is to do with a new feature called ‘WiFi Assist’, which switches your phone to 4G when your WiFi connection is rubbish. This has been an Android feature for a while, but new to Apple, hence the potential for a horrible surprise come bill time.
To switch off the service, here's how:
Go to Settings from your home screen. Then, click on 'Mobile Data' (if you're in America, you should hit 'Cellular') and then scroll to the bottom of the list, and underneath your apps you’ll find 'WiFi Assist' where you can toggle with the settings. Obviously, you'll be wanting to switch it off.
And that's it. You can leave WiFi Assist on for a bit to see how you go on, but if you find your data is being blitzed, then at least you know how to stop that from happening again in the future.