Yes, both Ziflow and Approval Studio offer a Free Trial.
Ziflow is designed for Large Enterprises, Medium Business and Small Business.
Approval Studio is designed for Individuals, Freelancers, Large Enterprises, Medium Business and Small Business.
Pricing for Ziflow Starts at $9/Month when Billed Yearly whereas for Approval Studio Starts at $3,999/Month when Billed Yearly.
Some top alternatives to Ziflow includes PageProof, GoProof, ProofQuick, ProofCafe, QuickReviewer, WebProof, Coment, CrossCap Online Proofing, Proofing and Frame.io.
Some top alternatives to Approval Studio includes PageProof, ProofQuick, ProofCafe, QuickReviewer, ReviewStudio, Workgroups DaVinci Proof, Hightail, WebProof, Coment and Proofing.