Yes, both 10Web and Pantheon offer a Free Trial.
10Web is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Pantheon is designed for Large Enterprises, Medium Business and Small Business.
Pricing for 10Web Starts at $10/Month when Billed Yearly whereas for Pantheon Starts at $29/Month.
Some top alternatives to 10Web includes Unbounce, VWO Deploy, WordPress, Wix, Weebly, Elementor, Squarespace, Jimdo, Webflow, Envato Sites, WebsiteBuilder, Visual Composer, Format, GoDaddy Website Builder and Web.com.
Some top alternatives to Pantheon includes Super, Qualified, Workvivo, AirOps, Webapp.io, OpsTech, SuperOps PSA Software, WebEnliven Solutions, DEITY Falcon, WordOps and IFTTT.