Learn how to uncover the hidden iPhone features that are secretly draining your battery and how to turn them off for good.

There’s a small act of rebellion that I indulge in whenever I’m on an airplane. I don’t turn off my iPhone or iPod during takeoff and landing. And if I’m tucked away in a window seat where the flight ...

You can turn off data on an iPhone all at once, for specific apps, or by turning on Airplane Mode through the Control Center.