If you're recording a Snapchat clip on your iPhone, it's now much easier to show friends both your handsome face and whatever you're looking at. The video messaging service has updated its iOS app with a feature that switches between the front and rear cameras with a double-tap of the screen. Snapchat is also tackling some of its security woes by optionally sending an SMS code to make sure that it's really you signing in. There's no mention of a corresponding Android upgrade, but it's easy to see that coming soon.
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