Cal.com vs Zapier
Side-by-side comparison of AI visibility scores, market position, and capabilities
Open-source scheduling infra with 30K+ GitHub stars; $25M Series A (2023); API-first appointment booking embeddable into any product; self-hostable under AGPLv3 license. Founded 2021, SF.
About
Cal.com is the leading open-source scheduling infrastructure platform, enabling businesses and developers to build appointment booking and calendar management into any application. Founded in 2021 and headquartered in San Francisco, Cal.com offers both a hosted SaaS product and a self-hostable open-source version under the AGPLv3 license. The platform integrates with Google Calendar, Outlook, Zoom, Stripe, and hundreds of other tools via a composable API-first architecture.
Zapier is the leading no-code automation platform connecting 7,000+ apps, with $310M revenue in 2024 and profitable since 2014, serving 1.8M+ businesses that automate workflows without coding.
About
Zapier is the dominant no-code automation platform that enables business users to connect applications and automate workflows without writing code. Founded in 2012 by Wade Foster, Bryan Helmig, and Mike Knoop, Zapier built a massive library of app integrations—now exceeding 7,000 apps—connected through a trigger-action model: when an event happens in one app (a new email, a form submission, a sale), Zapier automatically performs actions in other apps (creating a record, sending a notification, updating a spreadsheet). This simple concept enabled millions of businesses to automate time-consuming manual processes.
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