Yes, both Google Sites and Squarespace offer a Free Trial.
Google Sites is designed for Large Enterprises, Medium Business and Small Business.
Squarespace is designed for Medium Business and Small Business.
The starting price of Squarespace begins at $12/Month when Billed Yearly, while pricing details for Google Sites are unavailable.
Some top alternatives to Google Sites includes Unbounce, VWO Deploy, WordPress, PageCloud, Wix, Weebly, Squarespace, Envato Sites, 10Web, WebsiteBuilder, Format, WeWeb, GoDaddy Website Builder, Microsoft Sway and Web.com.
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.