Cal.com, Inc.

About Cal.com, Inc.

Financials

Dated, source-cited figures. Estimates are marked.

Products by Cal.com, Inc.

All products by Cal.com, Inc. reviewed by our AI panel of experts.

Cal.comAI Meeting Assistants

Scheduling infrastructure for individuals, teams, and organizations

From $12/mo7.9/10

How Our Review Panel Scores Cal.com, Inc.

Six independent reviewer personalities assessed Cal.com, Inc.'s product on their own terms. They landed within 0.5 points of each other, an unusually strong consensus.

Averaged across 1 reviewed product in our catalog. Scores are out of 10.

Competitive Landscape

Who Cal.com, Inc. competes with, and how they differ.

Calendly

The incumbent Cal.com was built as an open-source alternative to, and still the category's distribution leader. Calendly is closed-source SaaS sold per seat with no self-hosting option, while Cal.com ships a self-hostable core, an API and embeddable components aimed at developers.

C

Chili Piper

Chili Piper sells inbound lead routing and instant meeting booking to revenue teams at enterprise price points, with qualification and hand-off built around the CRM. Cal.com reaches the same round-robin and routing-form use case bottom-up from a free scheduling link and undercuts it on price.

HubSpot6.8/10

HubSpot Meetings bundles scheduling links free with the CRM, so sales teams already on HubSpot get booking pages without buying a separate tool. Cal.com competes as CRM-neutral infrastructure that integrates with whatever stack a team runs rather than pulling them onto one platform.

1 product reviewed on TopReviewed

Squarespace8.2/10

Squarespace owns Acuity Scheduling, the appointment-booking incumbent for service businesses that need paid bookings, classes and intake forms alongside a website. Cal.com targets developers and B2B teams instead, and exposes scheduling as an API other products build on.

1 product reviewed on TopReviewed

Motion7.9/10

Motion's core job is auto-planning a user's own tasks and focus time with AI, with booking links as a secondary feature. It overlaps with Cal.com on "AI scheduling assistant" demand but not on the external booking-page and scheduling-infrastructure use case Cal.com is built around.

1 product reviewed on TopReviewed

Company Timeline

Key milestones in Cal.com, Inc.'s history, with sources.

1. Jul 30, 2026Milestone

   Cal.eu to shut down as EU users migrate to Cal.com

   Cal.com announced it will migrate Cal.eu users onto Cal.com and shut the separate European platform down on 1 November 2026, ending the parallel EU deployment it had launched for users who did not want the international platform.

   cal.com
2. Apr 14, 2026Milestone

   Cal.com moves its production codebase closed source

   Cal.com moved production code to a private repository, arguing that AI can be pointed at an open-source codebase to systematically scan it for vulnerabilities. The public repository was renamed calcom/cal.diy and continues under the MIT license as the self-hostable community edition.

   cal.com
3. Aug 30, 2023Launch

   Cal.ai scheduling assistant lands in the codebase

   The "feat: cal ai" pull request (#10992) merged Cal.ai, the company's AI scheduling assistant, into the Cal.com monorepo. Cal.ai is now sold as Cal.com's AI phone agent.

   github.com
4. Apr 15, 2022Launch

   App Store for Time launches

   Alongside the Series A, Cal.com launched its App Store for Time, letting developers build time-based apps on its scheduling infrastructure without rebuilding calendar APIs and timezone calculations from scratch.

   gritdaily.com
5. Apr 15, 2022Funding

   Series A — $25M led by Seven Seven Six

   Cal.com announced a $25M Series A led by Alexis Ohanian's Seven Seven Six, with participation from Obvious Ventures, OSS Capital, Jack Altman, Tobi Lutke and Anthony Pompliano.

   gritdaily.com
6. December 2021Funding

   Seed — $7.4M led by OSS Capital

   Cal.com, Inc. raised a $7.4M seed round led by Joseph Jacks of OSS Capital, with Naval Ravikant, Balaji S. Srinivasan, Chad Hurley, Neha Narkhede, Guillermo Rauch, Tribe Capital and Remote First Capital participating. The company later disclosed the round was priced at a $60M post-money valuation.

   cal.com
7. September 2021Milestone

   Calendso rebrands to Cal.com and ships v1.0

   Five months after the Product Hunt launch, the team renamed Calendso to Cal.com after coming to terms with the previous owners of the domain, and released the first v1.0 release candidate. The core team had grown from the two founders to 12 people.

   cal.com
8. Mar 22, 2021Founded

   Calendso open-sourced as a Calendly alternative

   Peer Richelsen and Bailey Pumfleet published the first public repository for Calendso, the open-source scheduling project that became Cal.com. GitHub records the repository — since renamed calcom/cal.diy — as created on 22 March 2021.

   github.com