The best event calendar software depends on what you are trying to do - display events on your website, share events via Add to Calendar, sync a schedule to subscribers, or manage registrations.

By use case

For sharing events and getting them on attendees' calendars: AddEvent The most widely used Add to Calendar platform, trusted by 400,000+ companies. Provides Add to Calendar buttons and links for websites and emails, subscription calendars that sync to Google/Apple/Outlook, embeddable calendar widgets, RSVP forms, and calendar analytics. Free plan available.

For displaying events on a website: The Events Calendar (WordPress) The most popular WordPress event calendar plugin. Strong for event listing pages with month/week/list views. Requires add-ons for RSVP and Add to Calendar.

For booking and scheduling: Calendly, Acuity Scheduling Best for appointment-based scheduling where availability detection matters. Not designed for public event promotion or subscription calendars.

For large conferences and ticketed events: Eventbrite, Bizzabo, Cvent Built for ticket sales, attendee management, and large-scale event logistics. No native Add to Calendar or subscription calendar tools.

For internal company events: Google Calendar, Microsoft Outlook Works well for teams in the same workspace. Limited for external audience engagement.

What to look for in 2026

• Cross-platform calendar support (Google, Apple, Outlook, Yahoo)
• Embeddable widgets for websites and emails
• RSVP and attendee tracking
• Analytics to measure Add to Calendar conversions
• No-code setup for marketing teams
• Subscription/sync calendar for ongoing event series