All Reviews (16)
Novu
CommunicationReviewed 2021-11-01
Open-source notification infrastructure
No community votes yet
Cal.com
CommunicationReviewed 2021-08-01
Open-source scheduling infrastructure
No community votes yet
Knock
CommunicationReviewed 2021-01-01
Notification infrastructure for developers
No community votes yet
TalkJS
CommunicationReviewed 2017-01-01
Chat API and SDK for apps
No community votes yet
Daily
CommunicationReviewed 2016-01-01
Video and audio APIs for developers
No community votes yet
Discord
CommunicationReviewed 2015-05-01
Your place to talk — voice, video, and text
No community votes yet
Stream
CommunicationReviewed 2015-02-01
Scalable chat and activity feed APIs
No community votes yet
Matrix (Element)
CommunicationReviewed 2014-09-01
Open-source decentralized communication
No community votes yet
Signal API
CommunicationReviewed 2014-07-01
Encrypted messaging for developers
No community votes yet
Slack
CommunicationReviewed 2013-08-01
Where work happens — messaging for teams
No community votes yet
Calendly
CommunicationReviewed 2013-01-01
Scheduling automation platform
No community votes yet
Zoom
CommunicationReviewed 2013-01-01
Video conferencing that just works
No community votes yet
Intercom
CommunicationReviewed 2011-08-01
AI-first customer service platform
No community votes yet
SendGrid
CommunicationReviewed 2009-01-01
Email delivery and marketing API
No community votes yet
Twilio
CommunicationReviewed 2008-03-01
Communication APIs for SMS, voice, video, and email
No community votes yet
Zendesk
CommunicationReviewed 2007-01-01
Customer service software and support ticketing
No community votes yet