Cal.com vs OnceHub

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

OnceHub

• Sales and service teams that qualify leads before booking
• Advisors, coaches and clinics whose clients book by phone as well as online
• Individuals who need one free booking link

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.

OnceHub

• The free Basic plan is limited to one user, one connected calendar and one booking link.
• Round-robin distribution and routing forms start on Route at $19 per seat / month; chatbots need Engage at $39.
• SSO, SCIM provisioning and HIPAA BAAs come in a Security and Compliance add-on at $5 per seat / month (annual) on top of a paid plan.
• Text notifications require SMS credits, and each plan includes only 1 to 3 phone numbers.

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.

OnceHub

Booking pages and hubs

A visual designer builds booking pages with availability by location, approval before confirmation and multilingual journeys. Hubs gather several calendars behind one link.

Routing forms

From the Route plan, forms screen visitors and route them by their answers or contact properties, with the time picker shown inside the form.

Meeting distribution

Route assigns hosts dynamically by round robin, maximum availability or priority, can assign a booking to the contact's CRM owner, and supports meeting reassignment.

Phone agents

Paid plans include dedicated booking phone numbers where AI agents screen callers and book them using the account's existing scheduling rules. Extra numbers cost $4 a month.

Web chatbots

On Engage, chatbots answer visitor questions from your knowledge sources, route by AI or rules, and hand off to live chat or an instant meeting.

Integrations, API and MCP

Google, Microsoft 365, Exchange and iCloud calendars, five video tools and an MCP server for AI assistants are on every plan. Paid plans add CRM sync, Stripe, APIs and webhooks.

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.

OnceHub

• Basic$0

  One user, one connected calendar and one booking link, with calendar, video and email integrations and knowledge base support.

• Schedule$10

  per seat / month, billed annually ($12 billed monthly)

  Unlimited booking links and calendars, multi-host meetings, group sessions, Salesforce, HubSpot and Stripe integrations, APIs and 1 booking phone number.

• Route$19

  per seat / month, billed annually ($23 billed monthly)

  Adds unlimited routing forms, round-robin and priority-based distribution, concurrent sessions, room scheduling and 2 phone numbers.

• Engage$39

  per seat / month, billed annually ($47 billed monthly)

  Adds unlimited web chatbots with AI answers from your own content, handoff to live chat or an instant meeting, and 3 phone numbers.

• EnterpriseCustom

  For teams of 30 or more: custom agreements, security and legal reviews, a dedicated success manager and the security add-on included.

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.

OnceHub

• Annual discount

  Save up to 18% with yearly billing

  OnceHub's pricing page lists a saving of up to 18% on yearly billing: Schedule is $10 instead of $12 per seat / month, Route $19 instead of $23 and Engage $39 instead of $47.