Yes, both Shared SEO and SheerSEO offer a Free Trial.
Shared SEO is designed for Freelancers, Medium Business and Small Business.
SheerSEO is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Shared SEO Starts at $6/Month whereas for SheerSEO Starts at $8/Month when Billed Yearly.
Some top alternatives to Shared SEO includes SEOJet, SE Ranking, Mangools, SoloSEO, SEO Buddy, Zapier, MuleSoft Anypoint Connectors, SuiteJar, SEOcrawl and SheerSEO.
Some top alternatives to SheerSEO includes Seodity, SE Ranking, SEO Explorer, OnPage Champ, SoloSEO, SEO Buddy, SEO-Checker.io, SEO Audit Software, SEO Tester Online and SEOcrawl.