Not usable

Im sorry, but this app is neither self-explaining nor does it do what one would expect. The description video at the developers website must be a joke. Funny marketing video which "describes" just nothing. All I wanted is an app that enables me to take a video from my camera roll, remove its green color and replace it with another video from my camera roll or from the wonderful gallery. It is an impossible task.

Happy-Guy about Chroma Key Studio Pro, v3.1