In Pictures: 15 iPhone apps that changed our world

The first iPhone hit the market less than five years ago -- and shook up our world. Now iPhone sightings are everywhere, with Apple lovers listening to music, playing games and staring into tiny screens. The last holdouts are coming around and finally getting a smartphone. Most people feel lost without their iPhones. Can you live without these iPhone apps?

Camera

A high-quality camera on a smartphone is just brilliant. We now have a camera with us at all times that we can whip out and use in mere seconds. Really, who walks around with a standalone camera these days? We can capture images and video of special moments, on-the-scene news events, even documents. If you're enjoying a particular wine and want to remember the brand, just tap your iPhone and take a picture of the label. Who knew a ubiquitous camera could be so helpful?

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