Teamup Calendar - Cloud-based calendaring using capability URL, application developed in Zurich, Switzerland.
Houseparty - Brining empathy to online communication.
Campaign Calendar - Campaign Calendar by Bracket Labs builds a marketing calendar from your Salesforce Campaigns.
Squad - Screen share with friends from a group video chat ✨
ApPHP Calendar - ApPHP Calendar is a PHP calendar script that may be easily integrated and used with various PHP projects, such as schedulers, event, etc.
Airtime - Hang out with group video, share music & videos