Hi Ronny,
Thank you for your interest in our product!
While Events Calendar PRO is a Premium plugin, The Event Calendar is free.
By getting Events Calendar PRO, not only would you be able to get Premium Support Access, but you would also benefit from lots of very nice features which are not included in our core plugin.
Among those extra features, some would be great in conjunction with Community Events: for instance, you would be able to add custom fields, default content, and recurring events to the submission form!
I hope this helps,
Cheers,
Jeremy