Focus Twist will mimic the experience of Lytro's focus shift technology on your iPhone. It'll allow you to change the focal point of a photo after snapping it. The app captures a number of different images of the same scene and focuses on a different object in each one.

When completed, you can tap on different parts of the image to change the focus. When you're done, you can share the images on Twitter as well as Focus Twist's community. Images are shared as links on Focus Twist's website.

The app is not free though. It'll cost $1.99 but it's a whole lot less than buying a Lytro camera. That said, it's also not as effective as the real deal.

Focus Twist is available now in the App Store.