phpMyFAQ - phpMyFAQ is a world’s most popular mobile-friendly, feature-rich and open-sources FAQ software that uses PHP 5.

Intercom - Intercom is a customer relationship management and messaging tool for web businesses. Build relationships with users to create loyal customers.

Support Hero - Educate your customers through self-help support

HelpSite - HelpSite is a simple service to help your setup the perfect support centre or help site.

iService - iService is an integrated solution for managing all customer interactions with complete web-based interface, routes and automatically responds to customer email, provides a simple but powerful knowledge base, and includes a complete contact manageme…

Gist Platform - Live chat, bots & marketing automation -- free.