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Yes, both MediaMarkup and GoProof offer a Free Trial.
MediaMarkup is designed for Large Enterprises, Medium Business and Small Business.
GoProof is designed for Freelancers, Medium Business and Small Business.
Pricing details for both MediaMarkup and GoProof are unavailable at this time. Contact the respective providers for more information.
Some top alternatives to MediaMarkup includes PageProof, ProofCafe, QuickReviewer, ReviewStudio, Workgroups DaVinci Proof, Filestage, Hightail, Coment, ProofStuff and Proofing.
Some top alternatives to GoProof includes Google Sheets, PageProof, ProofQuick, ProofCafe, QuickReviewer, Workgroups DaVinci Proof, WebProof, Coment, CrossCap Online Proofing and Proofing.