Yes, both WiserNotify and ProofSky offer a Free Trial.
WiserNotify is designed for Large Enterprises, Medium Business and Small Business.
ProofSky is designed for Individuals, Large Enterprises, Medium Business and Small Business.
Pricing for WiserNotify Starts at $10/Month when Billed Yearly whereas for ProofSky Starts at $7.50/Month when Billed Yearly.
Some top alternatives to WiserNotify includes Fomo, Proof, ProveSource, Konverto, ProofSky, Super Social Proof, Social Proofy, Proofly, SocialProof and Prooven.io.
Some top alternatives to ProofSky includes Fomo, Proof, Konverto, Social Oracle, Super Social Proof, Sooproof, Social Proofy, Proofly, SocialProof and Acalytica Social Proof.
