Asana - Asana project management is an effort to re-imagine how we work together, through modern productivity software. Fast and versatile, Asana helps individuals and groups get more done.
TapTalk.io - TapTalk.io is a complete in-app chat SDK and messaging API - Easy integration and customizeable.
Wrike - Wrike is a flexible, scalable, and easy-to-use collaborative work management software that helps high-performance teams organize and accomplish their work. Try it now.
Lets Chat - Open source self-hosted chat app for small teams
Slack - A messaging app for teams who see through the Earth!
WeChat API - WeChat API and SDK allow developers to access and integrate the functionality of WeChat with other applications.