Squarespace offers Free Trial, but Joomla does not.
Joomla is designed for Freelancers, 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 Joomla are unavailable.
Some top alternatives to Joomla includes Story Chief, WordPress, Wix, Squarespace, Webflow, TalentLMS, Sitefinity, Drupal, Kentico CMS, Contentful, django CMS and Dialoguewise.
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.