There is only one setup package which will serve as both Free and Paid editions.
With Free edition, you can create video tutorials, export to other formats will have a watermark.
Activating with a license key will remove the watermark on appropriate outputs.
Supported Operating Systems: Windows 7/8/10, Windows XP, Vista: All Editions (both 32-bit (x86) and 64-bit (x64) are supported).