Yes, both ClearSlide and Showell offer a Free Trial.
ClearSlide is designed for Large Enterprises, Medium Business and Small Business.
Showell is designed for Large Enterprises, Medium Business and Small Business.
Pricing for ClearSlide Starts at $35/User/Month whereas for Showell Starts at $18/User/Month.
Some top alternatives to ClearSlide includes iPresent, Prezentor, Showell, ZoomInfo Engage, Salesvue, StorySlab, SalesReach, ShoDeck, Zoomifier and slideZing.
Some top alternatives to Showell includes Sales Desk, Enablix, Prezentor, Scaura, Veelo, SAP Sales Cloud, SalesHood, sales-i, Master-O and Zoomifier.