The Apple phone in your hand is incredibly powerful. Unlock its full potential with these next-level tweaks.

We independently review everything we recommend. We may make money from the links on our site. Learn more› By Wirecutter Staff We’ve finished testing the new version of the Black Diamond Wiz headlamp, ...

Apple iPhones arrived in 2007, running an unnamed operating system. A year later, it was dubbed iPhone OS 1, which was pretty boring. By 2010, marketing got its act together and came up with "iOS," ...