avaamo - Simple, Secure Business Messaging
IBM Rational DOORS Next Generation - IBM Rational DOORS Next Generation provides a scalable solution to optimize communication, collaboration and verification of requirements.
Intercom - Intercom is a customer relationship management and messaging tool for web businesses. Build relationships with users to create loyal customers.
Reqtify - Reqtify is an easy to use, interactive application for managing requirements.
Facebook Messenger - Facebook Messenger is a faster way to message.
Jira - The #1 software development tool used by agile teams. Jira Software is built for every member of your software team to plan, track, and release great software.