Dont get fooled by "professional video editor". this app is not professional at all. What I mean by professional is like After Effects, Maya, and Premiere Pro, not this stupid app which has no good features and you have to render all of the texts and montages before it accurately previews the clip to you. Yeah sure it has more features than iMovie for iPad, but only a few more features. What I want in a mobile video editor is green screen, and I dont want any stupid green border around the area. I just want a good mobile video editing app that has all of the things that I need. This will change my 1-star review to a 4-star review. If you get rid of the rendering process then I will give you a 5-star review. But until then, dont waste your precious 13 dollars, this app is not worth it.