Here's how to check your cellular data usage on an iPhone, and find specific readings for and manage each app's data.

When you're always on Wi-Fi, it's easy to overlook just how much data apps like Spotify use per month. But this becomes an issue when you have limited cellular data. Maybe you only have a 5GB monthly ...

FaceTime calls do use data, and you can check how much through the Settings app on your iPhone or iPad.

The latest version of the iOS 9 beta has brought some goodies, among them the new Wi-Fi Assist feature, which will recognize bad Wi-Fi connections, and use cellular ...

Your cell phone may work abroad, but don't assume it's free. Those roaming charges can shock you with bills far exceeding expectations. To lower your costs, travel expert Rick Steves, on his website ...

Your iPhone's status bar is a helpful dashboard that provides a glance at the vital signs of your smartphone. You're probably used to seeing the Wi-Fi and cellular data icons in this indicator field, ...

Looking to get a new phone and maybe a new provider at the same time? Here are our picks for the top postpaid and prepaid plans from AT&T, T-Mobile, Verizon, Mint Mobile, US Mobile and others.