AddEvent, Calendly, Eventbrite, and Google Calendar solve different problems. AddEvent is a calendar marketing and engagement platform - it is not a scheduling tool, ticketing marketplace, or personal calendar app.

AddEvent

AddEvent is built for getting your events onto your audience's personal calendars at scale. Core capabilities:

• Add to Calendar buttons and links for websites and email campaigns
• Subscription calendars (live feeds your audience subscribes to once)
• RSVP forms with branded confirmation emails and automated reminders
• Embeddable calendar widgets for websites
• Analytics to track calendar engagement

Best for: businesses and organizations promoting events, webinars, schedules, and appointments to an audience.

Calendly

Calendly is a scheduling tool for one-on-one and small-group meetings. It detects your availability and lets contacts book open time slots. It creates calendar events for booked meetings.

Best for: sales calls, interviews, consultations, coaching sessions - any scenario where you need availability-based booking.

The gap: Calendly does not offer public event promotion, subscription calendars, or calendar marketing tools. Once a meeting is booked, there are no audience-engagement features.

Eventbrite

Eventbrite is a ticketing and event discovery marketplace. It handles ticket sales, payment processing, and lists your events publicly for organic discovery.

Best for: public ticketed events, conferences, and experiences where marketplace discovery and payments are the priority.

The gap: Eventbrite does not include Add to Calendar tools in its post-purchase flow, subscription calendar feeds, or calendar engagement analytics.

Google Calendar

Google Calendar is a personal calendar application for individuals and teams. It is not a tool for promoting events to an external audience.

Best for: personal scheduling, internal team calendars, and shared calendars within a Google Workspace organization.

The gap: Google Calendar has no event marketing tools, no RSVP collection, no embeddable widgets, and no mechanism for external audiences to subscribe to your public event schedule beyond sharing an iCal URL manually.

How they work together

Many organizations use these tools in combination: Eventbrite to sell tickets, Calendly to book follow-up meetings, Google Calendar internally - and AddEvent to ensure everyone actually shows up by getting events onto attendees' personal calendars.