I don't know if it's just something you didn't notice, but you've locked the demo behind the paywall with the paid version. If it's not free anymore, then you should update your pages so that people know it's paid access only.

Thank you for making me aware of that. I have changed it and made it public again. I'm not sure when that reverted to not be public but appreciate you telling me! I'll give you access to V0.3 for letting me know.
Please leave me your email address to send you a free download key.