When you use it primarily to snap selfies and crush candy all day, it's easy to forget just
how powerful the iPhone in your pocket really is. It's stocked with myriad features you probably didn't even know were there, like the one that's creepily stalking you. Here are six randomly useful functions you should be taking advantage of.It's no secret that staring at screens all day, every day is ruining our eyes. To decrease the strain on your peepers, you may want to consider inverting your phone's colors, since it's been shown to make it easier to read at night. To try it out, go into the Accessibility menu under General settings. Once it's enabled, it also inverts the colors your camera sees -- which comes in handy if you're the guy from One Hour Photo and want to look at film negatives. https://www.thrillist.com/tech/nation/randomly-useful-things-your-iphone-can-do/tech