Yes, both Proof and Fizfy offer a Free Trial.
Proof is designed for Medium Business and Small Business.
Fizfy is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Proof Starts at $26/Month when Billed Yearly whereas for Fizfy Starts at $19/Month.
Some top alternatives to Proof includes and undefined.
Some top alternatives to Fizfy includes Fomo, Proof, SuperProof, JustProof, Super Social Proof, Sooproof, Evidence, Social Proofy, Proofly and SocialProof.