MemberStack offers Free Trial, but Connecting Members does not.
MemberStack is designed for Large Enterprises, Medium Business and Small Business.
Connecting Members is designed for Medium Business and Small Business.
Pricing for MemberStack Starts at $25/Month when Billed Yearly whereas for Connecting Members Starts at $99.95/Month.
Some top alternatives to MemberStack includes Servicebot, WebCommander, Connecting Members, MemberLeap, MemberClicks, YourMembership, Join It, TidyHQ, MembershipWorks and Outseta.
Some top alternatives to Connecting Members includes Church Community Builder, Pushpay, ParishSOFT, ChurchTools, Church Windows, One Church Software, Church Office Online, Church360, Church Management Software and ChMeetings.