How to restrict which apps use data when roaming on iOS

Have you ever found yourself unexpectedly out of mobile data or, even worse, received a massive phone bill but you’re not sure why? Even when not in use, apps may use data in the background which can result in wasted data and unexpected costs. Fortunately, it’s easy to change your settings and prevent apps from using data when you’re roaming on iOS. Doing this means any restricted apps will only go online again when your device is connected to

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