License checking, home calling and code obfuscation, not too cute for a GPL'ed code.
Anh there's no info about this during purchase, only when payment is done :-/
The support license enables all the functions of Vik Events with no time restriction and you can always change the domain by yourself. We limit the support for domain/installation and with the support license you can access the Answers Area for free. It was only written in the slideshow of the home page but now we put it also in the Vik Events main page. The call home function doesn't stop the installation of Vik Events, it's required to enable the support license for your domain.