X2CRM is described as 'open source CRM software platform for marketing, sales, customer service and other custom applications powered by an easy to use workflow engine and process management framework'. There are more than 25 alternatives to X2CRM for a variety of platforms, including Online / Web-based, Windows, Android, iPhone and SaaS. The best alternative is Odoo, which is both free and Open Source. Other great apps like X2CRM are Crust CRM (Free, Open Source), Zoho CRM (Freemium), SuiteCRM (Free, Open Source) and Salesforce (Paid).
Odoo (formerly OpenERP) is a suite of open-source business apps written in Python and distributed under the AGPL license, under the Open Core software business model. It is used by 2 million users worldwide to manage companies of all size.
Crust CRM is a 100% free and open-source CRM. It's fully featured and includes rich dashboards, automation rules (workflows), collaborative team messaging and much more. You can customise your CRM with the included low-code development platform.
SuiteCRM provides an enterprise-grade Customer Relationship Management (CRM) application to a global community of users and software developers. It is a robust and credible alternative to Salesforce, Microsoft and the major CRM vendors.
Sugar is a complete CRM solution that automates your core sales, customer service and marketing processes, with a focus on the individual. Main capabilities: - sales force automation - marketing automation - customer support - reporting capabilities