Before you buy Korsakow, please check the demo version first. The demo version is fully functional, but it prints a watermark on an exported Korsakow film.
You are allowed to use the demo for 31 days after you have initially downloaded it.
You can continue working on a project you have started with the demo version, after getting the full version of Korsakow. So you will not loosing your work you have created in the demo version.