Steady Camera
Your iPhone can already do a little stabilization of its own, but if you've ever tried to film while walking, running, riding a bike, or otherwise moving in a jumpy way, you know it can only do so much. On its own, anyway. Download Steady Camera, and you'll have a way better chance of coming out with great looking footage. This new app uses the gyroscope sensors in your phone to know where the camera is pointing, automatically compensating for abrupt movements to give you footage that looks smooth as a Steadicam. And slo-mo junkies are taken care of as well - with the ability to set start and end points, sharing is as easy as render and tap.
