Event Calendar App - A simple, easy to manage, way of displaying events
Eventail - A compact calendar widget for iOS 🗓️
Zoho Backstage - Plan, run, and analyze your event— all from one place
Cal.com - Cal.com (formerly Calendso) is the open source Calendly alternative.
Attendize Event Ticketing - Attendize is a free & open-source ticket selling and event management platform
Inspora - virtual chat-stylist for fashion advice.