This is seriously a joke
This app doesn’t do many things - it simply makes a video still except for an area. It requires you to record a piece of video with camera absolutely stable, which is rarely the case if you only use iPhone to take videos. And the area with motion can’t be an moving object causing change of mask area. And it isn’t of much real use beyond playing for fun.
I tested a video with 29MB and it created a project of 454MB before I did any editing. Then the output video has a big ugly watermark at the center. If you want to remove it you have to pay $199.99. And they also charge $10 or $20 per month to use their cloud service, as if there aren’t plenty of other free options. This is laughable. The developer is totally an opportunists. They know clearly that this app isn’t that usefuls and most people won’t think it worth even $2.
MGhostSoft about
Cinemagraph Pro