Yes, both Fomo and Conversion Plus offer a Free Trial.
Fomo is designed for Large Enterprises, Medium Business and Small Business.
Conversion Plus is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Fomo Starts at $19/Month whereas for Conversion Plus Starts at $8.33/Month when Billed Yearly.
Some top alternatives to Fomo includes Proof, RocketProof, Fizfy, JustProof, Social Oracle, Super Social Proof, Sooproof, Social Proofy, Proofly and SocialProofed.
Some top alternatives to Conversion Plus includes Proof, ProveSource, SuperProof, JustProof, Super Social Proof, Sooproof, Social Proofy, Proofly, SocialProof and Prooven.io.