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

Intercom App Store - Integrate with Intercom and grow your business

Freshdesk - Freshdesk is a cloud-based customer support software that lets you support customers through traditional channels like phone and email, social channels like Facebook and Twitter, and your own branded community

Outbound Apps by Intercom - Embed apps right inside your messages

Zoho Desk - Industry's first context-aware Helpdesk Software

indemandly - Live chat 2.0: Customer messaging that converts