Yes, both SyncSketch and Jumpshare offer a Free Trial.
SyncSketch is designed for Large Enterprises, Medium Business and Small Business.
Jumpshare is designed for and undefined.
Pricing for SyncSketch Starts at $6.80/Month when Billed Yearly whereas for Jumpshare Starts at $8.25/Month when Billed Yearly.
Some top alternatives to SyncSketch includes Ziflow, ProofCafe, QuickReviewer, ReviewStudio, Workgroups DaVinci Proof, Filestage, WebProof, Coment, MediaMarkup and Proofing.
Some top alternatives to Jumpshare includes CloudApp, Loom, Droplr, GoProof, ProofQuick, ProofCafe, Workgroups DaVinci Proof, WebProof, Dropbox Replay and Proofing.