Yes, both Squarespace and Conversion Plus offer a Free Trial.
Squarespace is designed for Medium Business and Small Business.
Conversion Plus is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Squarespace Starts at $12/Month when Billed Yearly whereas for Conversion Plus Starts at $8.33/Month when Billed Yearly.
Some top alternatives to Squarespace includes Unbounce, VWO Deploy, WordPress, SITE123, Wix, Webflow, Envato Sites, WebsiteBuilder, Bookmark Website Builder, Format, Website.com, SiteBuilder.com, Square Ecommerce, GoDaddy Website Builder and Web.com.
Some top alternatives to Conversion Plus includes Proof, ProveSource, SuperProof, JustProof, Super Social Proof, Sooproof, Social Proofy, Proofly, SocialProof and Prooven.io.