A new iOS app brings green screen functionality to your iPhone.
StackMotion allows users to superimpose images, or parts of images, onto photos and videos from their iPhone's camera roll to create interactive videos and slideshows.
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The app, which launched Thursday, relies on image recognition software that allows users to quickly isolate and swap out an image's background so it can be overlaid onto another image or video.
StackMotion can also be used to create slideshows that include up to 100 images. Users can further edit their videos by adding filters, text, adjusting the aspect ratio and setting the entire video to music from their library.

The StackMotion App lets you superimpose images on top of photos and videos from your camera roll.
Image: StackMotion
Daniel Vinh, one of the founders of Falmbe Studios, the company behind StackMotion, said the app is targeted toward Instagram power-users who like to find creative ways to share their photos.
"Instagrammers are always looking for that edge up," said Vinh in an interview with Mashable. "They try to be one of the first to use a cool feature, to really dynamically change their content and they're really trying to differentiate themselves from what everyone else is doing. We're offering people an opportunity to enhance their creation."
Besides Instagram, completed videos can be shared to Facebook, Twitter, Tumblr, YouTube and Viddy.
The $1.99 app is available in the App Store. Vinh said there are currently no plans for an Android version but didn't rule it out for the future.
Check out the video, below, to see StackMotion in action.

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