Yes, both Proofing and ReviewStudio offer a Free Trial.
Proofing is designed for Individuals, Medium Business and Small Business.
ReviewStudio is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
The starting price of ReviewStudio begins at $15/Month when Billed Yearly, while pricing details for Proofing are unavailable.
Some top alternatives to Proofing includes Infolio, PleaseReview, PageProof, QuickReviewer, ReviewStudio, Filestage, WebProof, Coment, MediaMarkup and Collabtools.
Some top alternatives to ReviewStudio includes PageProof, ProofCafe, QuickReviewer, Workgroups DaVinci Proof, Hightail, WebProof, Coment, CrossCap Online Proofing, ProofStuff and Proofing.