CiviCRM is a web-based, open source, internationalized suite of software for constituency relationship management, that falls under the broad rubric of customer relationship management. Developed by CiviCRM
License: Open Source
SuiteCRM is a versatile CRM solution geared towards businesses with strong sales, marketing, and reporting features, while CiviCRM is tailored for non-profits, focusing on membership and event management functionalities. Both are open-source, but their primary use cases and strengths vary significantly.