Yes, both Hightail and ReviewStudio offer a Free Trial.
Hightail is designed for Large Enterprises, Medium Business and Small Business.
ReviewStudio is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Pricing for Hightail Starts at $12/Month whereas for ReviewStudio Starts at $15/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 ReviewStudio includes PageProof, ProofCafe, QuickReviewer, Workgroups DaVinci Proof, Hightail, WebProof, Coment, CrossCap Online Proofing, ProofStuff and Proofing.