Member365 is described as 'all-in-one membership management software platform that enables member-based organizations to stop using multiple applications and move to one platform to save time and expense'. There are more than 25 alternatives to Member365, not only websites but also apps for a variety of platforms, including Android, iPhone, Linux and Self-Hosted solutions. The best alternative is TidyHQ, which is free. Other great sites and apps similar to Member365 are Galette (Free, Open Source), Wild Apricot (Freemium), Sheep (Paid) and Tendenci (Free, Open Source).
Pino is a Drupal 8 distribution for managing members and their metadata. With Pino, you can manage memberships with ease, send emails to your members about your organization's important issues and much more.
ClubExpress lets you easily create your club's custom web site, integrated with your membership database and communication tools. You get features for everybody: visitors, members, program coordinators and club officers.
Memberize provides membership site software and applications for your membership web site, membership management software, event management, member database software, and online membership management or club membership software.
Admidio is a free online membership management system that is optimized for clubs, groups and organizations. In addition to the classic member administration, it consists of a large number of modules that can be integrated into an existing homepage.