Yes, both Pipeline 247 and Slingshow offer a Free Trial.
Pipeline 247 is designed for Individuals, Freelancers, Medium Business and Small Business.
Slingshow is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Pipeline 247 Starts at $15/Month whereas for Slingshow Starts at $37/Month when Billed Yearly.
Some top alternatives to Pipeline 247 includes Adobe Connect, GoToWebinar, EasyWebinar, TwentyThree, ClickMeeting, LiveWebinar, ezTalks Webinar, WebinarNinja, Anymeeting Webinars and eWebinar.
Some top alternatives to Slingshow includes Adobe Connect, GoToWebinar, EasyWebinar, ClickMeeting, LiveWebinar, ezTalks Webinar, Zoom Video Webinar, WebinarGeek, WebinarNinja and Workcast.