How to reduce your data usage
Unless you are fortunate enough to have an unlimited data plan with your mobile phone network provider, there may be a time where you need to lessen your data usage to ensure you are not billed. Wikihow mention many methods that can Help in lowering your data usage on iPhone devices
Disabling Wi-Fi Assist
Scroll down and slide the “Wi-Fi Assist” switch to Off
Disabling Background Refresh for Apps
Disabling Facebook, Twitter and Instagram Video Autoplay
I used to turn my phone on Airplane mode until I needed to use my data, especially when I was travelling in other countries since the data becomes so expensive.
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iPhone makes it really easy to choose which apps you want to keep mobile data on, this means that you can ensure that apps you don't use often aren't eating up your data in the background.
All the best, Leia
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