Yes, both ConvertKit and WebinarNinja offer a Free Trial.
ConvertKit is designed for Individuals, Freelancers, Large Enterprises, Medium Business and Small Business.
WebinarNinja is designed for Large Enterprises, Medium Business and Small Business.
The starting price of WebinarNinja begins at $24/Month when Billed Yearly, while pricing details for ConvertKit are unavailable.
Some top alternatives to ConvertKit includes Pipedrive, Campaigner, Moosend and SMTP.
Some top alternatives to WebinarNinja includes Zoho Meeting, GoToWebinar, EasyWebinar, ClickMeeting, LiveWebinar, ezTalks Webinar, Zoom Video Webinar, PowWowNow Webinar, WebinarJam and Communique Webinar Platform.