Yes, both TwentyThree and eWebinar offer a Free Trial.
TwentyThree is designed for Individuals, Freelancers, Large Enterprises, Medium Business and Small Business.
eWebinar is designed for Large Enterprises, Medium Business and Small Business.
Pricing for TwentyThree Starts at $1,499/Month whereas for eWebinar Starts at $49/Month.
Some top alternatives to TwentyThree includes Adobe Connect, GoToWebinar, EasyWebinar, LiveWebinar, ezTalks Webinar, Zoom Video Webinar, WebinarNinja, PowWowNow Webinar, WebinarJam and eWebinar.
Some top alternatives to eWebinar includes Adobe Connect, GoToWebinar, EasyWebinar, LiveWebinar, ezTalks Webinar, WebinarNinja, webinar.net, Webinato, Anymeeting Webinars and EverWebinar.