Apps New platform for making demo videos

[garf]

Hi,

I have an idea for a business to create a platform for app developers to make their own demo videos for their apps. So the idea would be for app developers to make a professional looking demo video really fast and easily to promote their app using templates from the platform. My question is, would app developers need this platform or are they satisfied with just using screen capture and any other software they may already have?

Any feedback would be much appreciated.