While WebinarJam is for creating live webinars (that you can always rebroadcast), EverWebinar is for creating pre-recorded webinars.
Webinar Jam is browser-based and allows you to reach up to 5,000 users in one live presentation. You can have up to 6 presenters and PowerPoint and Keynote slides can be uploaded. Key features include live chat with attendees, email integration, a page builder with templates that can be customized, branded and password protected rooms and polls and surverys. Hosts and presenters can also bring attendees up on stage and post live offers.
EverWebinar is put out by the same company, but sold as a separate service. EverWebinar gives clients greater flexibility, less pressure and more time to plan and edit content with the same look as live events. EverWebinar also allows clients to have hybrid webinars and to integrate with WebinarJam to convert live webinars into recorded ones. EverWebinar features many of the same features as Webinar Jam such as pre-made landing pages, integrations with CRM and autoresponders and real-time analytics.
Clients say the user interface could be improved to have a more robust tracking system.