Cal.com vs Koalendar

Cal.com

• Solo users who want unlimited event types without paying
• Developers adding scheduling to their own product
• Organizations that need SAML SSO, SCIM and compliance attestations

Koalendar

• Solo professionals and teachers who want unlimited free bookings
• Small businesses that take payment when a client books
• Booking rooms or other shared resources alongside people

Cal.com

• The free plan is limited to 1 user; shared team availability and round-robin scheduling need the Teams plan.
• Cal.com announced in April 2026 that its production code was going closed source. The open-source edition is now Cal.diy, without Teams, Organizations, Workflows or SSO.
• Cal.com recommends Cal.diy for personal, non-production use only; self-hosting the commercial product requires an enterprise license from sales.
• SAML SSO, SCIM and sub-teams start on the Organizations plan at $28 per user / month, billed yearly.

Koalendar

• The Free plan syncs 2 calendars, offers only Google Meet for video links and has no reminders, payments, group sessions or custom form questions.
• Koalendar is testing new pricing: some new visitors are shown Pro at $9 per seat / month on annual billing ($12 monthly) with an added Business or Premium tier.
• A seat is any bookable user or resource, so rooms and equipment count toward the bill. SMS reminders cost extra.
• HIPAA support with a BAA is sold as an add-on on request.

Cal.com

Unlimited event types on the free plan

A single user can create unlimited event types, connect unlimited calendars and send email and SMS notifications without paying.

Team scheduling

The Teams plan adds shared availability, round-robin assignment, managed and collective event types, routing forms and booking analytics.

Payments and CRM sync

Stripe and PayPal payments and Salesforce and HubSpot sync are listed on the free plan, alongside 100+ app integrations.

Cal Video

Cal.com's own video conferencing service can host booked meetings as an alternative to Zoom, Google Meet or Microsoft Teams.

API and embeds

Cal.com is also aimed at developers building scheduling into their own products, with an API, embeds and workflow automation.

Cal.diy community edition

An MIT-licensed, self-hosted fork of Cal.com with the commercial code removed. It has no hosted version and needs no license key.

Koalendar

Booking pages

Unlimited booking pages with a custom link, logo and brand colors on every plan. Pages detect the visitor's time zone and are translated into more than 30 languages.

Calendar sync

Checks Google, Outlook and iCloud calendars for conflicts and writes new bookings back. The Free plan connects 2 calendars; Pro has no limit.

Team and resource scheduling

Pro adds round robin distribution, collective events with several hosts, and letting invitees pick a provider. A seat can be a person or a bookable resource such as a room.

Payments at booking

Pro collects payment through Stripe or a PayPal request in 150+ currencies, with taxes and coupon codes. Koalendar says it takes no commission.

Reminders and follow-ups

Calendar invitations are free. Pro adds email reminders, custom notifications and follow-up emails, plus SMS reminders that are charged by usage.

Mobile apps and extensions

iPhone and Android apps manage bookings and share links, and browser extensions for Chrome, Edge and Brave give quick access to booking pages.

Cal.com

• Free$0

  One user with unlimited event types and calendars, payments, and Salesforce and HubSpot sync.

• Teams$12

  per user / month, billed yearly ($16 monthly)

  Shared team availability, round-robin, managed and collective event types, routing forms, analytics and branding removal.

• Organizations$28

  per user / month, billed yearly ($37 monthly)

  Unlimited sub-teams, company subdomain, SAML SSO, SCIM, role-based permissions, and SOC 2, HIPAA and ISO 27001 compliance.

• EnterpriseCustom

  Annual contracts with dedicated onboarding and engineering support, SLA and uptime guarantees, and a dedicated database.

Koalendar

• Free$0

  Unlimited bookings and booking pages, 2 synced calendars, Google Meet links, embeds, mobile apps and browser extensions.

• Pro$6.99

  per seat / month, billed annually ($9.99 billed monthly)

  Unlimited calendars, round robin and collective events, group sessions, payments, email and SMS reminders, form questions, Zapier and no Koalendar branding.

Cal.com

• Annual discount

  Save 25% with yearly billing

  Cal.com's pricing page marks yearly billing as saving 25%: Teams is $12 and Organizations $28 per user per month billed yearly, against the $16 and $37 rates quoted on its homepage.

Koalendar

• Annual discount

  Save 30% with annual billing

  Koalendar's pricing page lists a 30% saving on annual billing: Pro is $6.99 per seat / month instead of $9.99.

• Education

  Special offers for schools and nonprofits

  The pricing FAQ says schools, universities and nonprofits can get special offers by contacting the sales team. No rate is published.