Squarespace offers Free Trial, but MembershipWorks does not.
Squarespace is designed for Medium Business and Small Business.
MembershipWorks is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Squarespace Starts at $12/Month when Billed Yearly whereas for MembershipWorks Starts at $99/Month.
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 MembershipWorks includes iMIS, ClubExpress, MemberLeap, Nimble AMS, MemberClicks, YourMembership, Aptify, Join It, ChMeetings and Springly.