Gong - Gong uses AI to analyze spoken conversations from audio sources and web conferencing platforms such as Cisco WebEx, GoTo Meeting and Zoom.
Cronofy - Unified Calendar API for developers
emble - Plan better events with your friends
Calendarix - Calendarix is a powerful and easy to use web-based calendar that runs on PHP and MySQL.
Calendarscope - Make your calendar fun!
Campaign Calendar - Campaign Calendar by Bracket Labs builds a marketing calendar from your Salesforce Campaigns.