Yes, both Hightail and SyncSketch offer a Free Trial.
Hightail is designed for Large Enterprises, Medium Business and Small Business.
SyncSketch is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Hightail Starts at $12/Month whereas for SyncSketch Starts at $6.80/Month when Billed Yearly.
Some top alternatives to Hightail includes ShareFile, Dropbox Business, Microsoft OneDrive for Business, Dropbox Professional, GoProof, Ziflow, Workgroups DaVinci Proof, WebProof, Dropbox Paper and Proofing.
Some top alternatives to SyncSketch includes Ziflow, ProofCafe, QuickReviewer, ReviewStudio, Workgroups DaVinci Proof, Filestage, WebProof, Coment, MediaMarkup and Proofing.