Hey Carl,
As our products pages state:
CL-Eye Driver - Free Driver License
Single camera support for personal non-commercial use.
CL-Eye SDK - Free Developer License
Single and dual camera support for non-commercial development use.
CL-Eye Packs - Commercial Licensing
Unlimited multi-camera support for research and commercial use.
Device licensing credits for distribution in commercial projects.
So to summarize yes both our Driver and SDK are free for non-commercial use but if you wish to use in a commercial project and/or redistribute you have to purchase a CL-Eye Platform Pack which provides a commercial redistributable license with the ability to use as many cameras as needed, Also provides access to commercial forums and ticket system for technical support.
You can read our End User License Agreement Here: http://codelaboratories.com/kb/CL-Eye-Platform-EULA/
G’luck on your project and please let us know if you have any other questions.