Yes, both Approval Studio and SyncSketch offer a Free Trial.
Approval Studio is designed for Individuals, Freelancers, Large Enterprises, Medium Business and Small Business.
SyncSketch is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Approval Studio Starts at $3,999/Month when Billed Yearly whereas for SyncSketch Starts at $6.80/Month when Billed Yearly.
Some top alternatives to Approval Studio includes PageProof, ProofQuick, ProofCafe, QuickReviewer, ReviewStudio, Workgroups DaVinci Proof, Hightail, WebProof, Coment and Proofing.
Some top alternatives to SyncSketch includes Ziflow, ProofCafe, QuickReviewer, ReviewStudio, Workgroups DaVinci Proof, Filestage, WebProof, Coment, MediaMarkup and Proofing.