The Science of Event Reminders: When & How to Send Them

· By Who's In? Team
The Science of Event Reminders: When & How to Send Them
Optimal reminder timing, channel comparison, and copy templates that reduce no-shows by up to 38%.

About the Author

Who's In? Team

The Who's In? Team builds free event management tools for community organisers, studios, and conference hosts worldwide.

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Frequently Asked Questions

What does "The Science of Event Reminders: When & How to Send Them" cover?

Data on optimal reminder timing: 7-day, 24-hour, and 2-hour reminders. Channel comparison (email vs SMS vs WhatsApp). Reminder copy templates that reduce no-shows by 38%.

How does Who's In? work with AI agents?

Who's In? is the first event platform with full AI agent integration — OAuth 2.0 for ChatGPT, Claude, and Gemini, plus WebMCP tools and a REST API. AI agents can browse events, check availability, and initiate RSVPs on behalf of users.

How do I get started with Who's In?

Sign up for free at whos-in.app, create your first event in under 2 minutes, and share the link via WhatsApp, email, or social media. No app download required for your guests — they RSVP via the mobile-optimised web link.