# Cal.com vs OnceHub

**Leader by vioscaleAI score:** Cal.com

| Attribute | Cal.com | OnceHub |
|---|---|---|
| **vioscaleAI score** | 82.2 (55% (medium)) | 54.6 (56% (medium)) |
| content.faq | `[{"answer":"Cal.com is a meeting scheduling software that enables clients to book appointments from your calendar, automate reminders and follow-ups, and integrate with tools like Google Calendar, Outlook, and Slack. It offers a free tier with core features plus paid plans for teams managing complex scheduling across multiple time zones. It is indexed under Appointment Scheduling.","source":"https://cal.com/blog/acuity-scheduling-pricing","question":"What is Cal.com?","confidence":0.6},{"answer":"Cal.com offers a free tier, so you can start without paying. Paid plans start at $16 per user per month. Prices are published openly on the vendor's own pricing page. Pricing changes often, so verify at source before relying on it.","source":"https://cal.com/blog/acuity-scheduling-pricing","question":"Is Cal.com free?","confidence":0.6},{"answer":"We have confirmed browser-based access to Cal.com. That is the extent of what we could verify from public sources, so it may well offer desktop or mobile clients we have not indexed.","source":"https://cal.com/blog/acuity-scheduling-pricing","question":"What platforms does Cal.com support?","confidence":0.6},{"answer":"Yes. Cal.com can be deployed cloud / SaaS, on-premise and self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://cal.com/blog/acuity-scheduling-pricing","question":"Can Cal.com be self-hosted?","confidence":0.6},{"answer":"We have confirmed 16 integrations for Cal.com, including Slack, Salesforce, Google Calendar, Microsoft Outlook, Apple/CalDAV, Zoho, Zoom and Google Meet, plus 8 more. This is what we could verify from public sources, so the vendor may support others we have not indexed.","source":"https://cal.com/blog/acuity-scheduling-pricing","question":"What does Cal.com integrate with?","confidence":0.6},{"answer":"We have independently confirmed SOC 2, ISO 27001, HIPAA and GDPR for Cal.com. Certifications we do not list are ones we have not been able to verify from public sources, which is not the same as Cal.com not holding them. Always confirm compliance directly before you rely on it.","source":"https://cal.com/compliance/soc-2","question":"What security certifications does Cal.com have?","confidence":0.7},{"answer":"Cal.com is available worldwide. Its primary market is the United States. The vendor is headquartered in the United States.","source":"https://cal.com/blog/acuity-scheduling-pricing","question":"Where is Cal.com available?","confidence":0.75}]` | `[{"answer":"OnceHub is an appointment booking software that centralizes multiple calendars into a single booking link, handles one-on-one and group scheduling with dynamic or fixed routing, and includes phone-based agents to capture appointments through multiple channels. It integrates with calendars, video conferencing, CRMs, and automation platforms. It is indexed under Appointment Scheduling.","source":"https://www.oncehub.com/pricing","question":"What is OnceHub?","confidence":0.6},{"answer":"OnceHub offers a free tier, so you can start without paying. Pricing changes often, so verify at source before relying on it.","source":"https://www.oncehub.com/pricing","question":"Is OnceHub free?","confidence":0.6},{"answer":"We have confirmed browser-based access to OnceHub. That is the extent of what we could verify from public sources, so it may well offer desktop or mobile clients we have not indexed.","source":"https://www.oncehub.com/pricing","question":"What platforms does OnceHub support?","confidence":0.6},{"answer":"We have only confirmed a cloud / SaaS deployment for OnceHub, so it appears to be vendor-hosted. If a self-hosted option exists we have not found it documented publicly.","source":"https://www.oncehub.com/pricing","question":"Can OnceHub be self-hosted?","confidence":0.6},{"answer":"We have confirmed 26 integrations for OnceHub, including Salesforce, HubSpot, Stripe, Google Calendar, Microsoft 365, Microsoft Teams, Google Meet and Zoom, plus 18 more. This is what we could verify from public sources, so the vendor may support others we have not indexed.","source":"https://www.oncehub.com/pricing","question":"What does OnceHub integrate with?","confidence":0.6},{"answer":"We have independently confirmed SOC 2, HIPAA and GDPR for OnceHub. Certifications we do not list are ones we have not been able to verify from public sources, which is not the same as OnceHub not holding them. Always confirm compliance directly before you rely on it.","source":"https://www.oncehub.com/trustcenter/compliance/ferpa","question":"What security certifications does OnceHub have?","confidence":0.7}]` |
| deployment.options | `{"cloud":true,"on_prem":true,"self_hosted":true}` | `{"cloud":true}` |
| description.long | Cal.com is a scheduling application that lets users and teams share booking links for meeting scheduling. It automatically handles calendar synchronization across multiple services, timezone detection, reminders, payments, and video conferencing integration. | OnceHub is an appointment booking software that centralizes multiple calendars into a single booking link, handles one-on-one and group scheduling with dynamic or fixed routing, and includes phone-based agents to capture appointments through multiple channels. It integrates with calendars, video conferencing, CRMs, and automation platforms. |
| features.capabilities | `{"soc2":true,"free_tier":true,"round_robin":true,"group_events":true,"soc2_type_ii":true,"pricing_model":"per_user_seat_monthly","routing_forms":true,"website_embed":true,"hipaa_available":true,"architecture_model":"managed_cloud_saas","payments_at_booking":true,"collective_scheduling":true,"paid_consultation_stripe_checkout_gate":true,"automated_email_and_sms_meeting_reminders":true,"gdpr_and_ccpa_compliance_for_attendee_data":true,"automatic_time_zone_detection_and_translation":true,"native_zoom_google_meet_teams_link_generation":true,"team_round_robin_lead_routing_and_availability":true,"multi_party_collective_scheduling_finding_overlap":true,"dynamic_buffer_times_between_back_to_back_meetings":true,"public_booking_link_generation_for_external_clients":true}` | `{"soc2":true,"free_tier":true,"round_robin":true,"group_events":true,"soc2_type_ii":true,"pricing_model":"freemium","routing_forms":true,"website_embed":true,"deployment_model":"cloud_managed_saas","payments_at_booking":true,"salesforce_hubspot_crm_sync":true,"google_workspace_office365_sync":true,"zapier_make_webhook_integration":true,"crm_lead_ownership_based_routing":true,"website_embeddable_booking_widget":true,"dynamic_zoom_teams_link_generation":true,"paid_appointment_stripe_collection":true,"round_robin_team_assignment_routing":true,"bi_directional_calendar_conflict_sync":true}` |
| integrations.count | 100 | 25 |
| integrations.list | `[{"name":"Slack"},{"name":"Salesforce"},{"name":"Google Calendar"},{"name":"Microsoft Outlook"},{"name":"Apple/CalDAV"},{"name":"Zoho"},{"name":"Zoom"},{"name":"Google Meet"},{"name":"Microsoft Teams"},{"name":"HubSpot"},{"name":"Pipedrive"},{"name":"Stripe"},{"name":"Apple Calendar","native":true,"category":"calendar","direction":"bidirectional"},{"name":"Zoho Calendar","native":true,"category":"calendar","direction":"bidirectional"},{"name":"Zoho CRM","native":true,"category":"crm","direction":"bidirectional"},{"name":"Square","native":false,"category":"payments","direction":"outbound"},{"name":"PayPal","native":false,"category":"payments","direction":"outbound"},{"name":"Basecamp","native":true,"category":"project_management","direction":"bidirectional"},{"name":"Cal Video","native":true,"category":"video","direction":"outbound"}]` | `[{"name":"Salesforce"},{"name":"HubSpot"},{"name":"Stripe"},{"name":"Google Calendar"},{"name":"Microsoft 365"},{"name":"Microsoft Teams"},{"name":"Google Meet"},{"name":"Zoom"},{"name":"Webex"},{"name":"Exchange"},{"name":"iCloud"},{"name":"Gmail"},{"name":"GoTo Meeting"},{"name":"Slack"},{"name":"Asana"},{"name":"monday.com"},{"name":"Google Sheets"},{"name":"Keap"},{"name":"Redtail"},{"name":"GoTo","native":true,"category":"video_conferencing","direction":"bidirectional"},{"name":"Outlook/Exchange","native":true,"category":"calendar","direction":"bidirectional"},{"name":"Zapier","native":false,"category":"automation","direction":"bidirectional"},{"name":"Make","native":false,"category":"automation","direction":"bidirectional"},{"name":"n8n","native":false,"category":"automation","direction":"bidirectional"},{"name":"Integrately","native":false,"category":"automation","direction":"bidirectional"},{"name":"Viasocket","native":false,"category":"automation","direction":"bidirectional"},{"name":"Keragon","native":false,"category":"automation","direction":"bidirectional"},{"name":"Microsoft Copilot Studio","native":false,"category":"ai","direction":"bidirectional"}]` |
| market.availability | `{"hqCountry":"US","primaryMarkets":["US"],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | `{"primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | `{"web":true}` | `{"web":true}` |
| pricing | `{"type":"subscription","plans":[{"free":true,"name":"Free","summary":"Free forever","features":["Unlimited event types & calendars","Email & SMS notifications","Accept Stripe & PayPal payments","Two-way Salesforce & HubSpot sync","1-click import Calendly events"],"description":"Individual scheduling with core features","contactSales":false},{"free":false,"name":"Teams","summary":"$12/user/month, 14-day free trial","features":["Free plan features, plus:","1 team, shared availability","Round-robin scheduling","Managed & collective event types","Routing forms"],"commitment":"monthly","components":[{"kind":"per_unit","unit":"seat","amount":12,"period":"month","currency":"USD"}],"description":"Small teams and startups with shared scheduling needs","contactSales":false},{"free":false,"name":"Enterprise","summary":"Contact sales","features":["Teams plan features, plus:","SAML SSO and SCIM","SOC 2, HIPAA, ISO 27001 compliant","Instant meetings","SLA & uptime guarantees","Priority Slack & account support"],"description":"Larger teams requiring advanced control, privacy, and security","contactSales":true}],"summary":"Free forever for individuals. $12/user/month for teams (14-day free trial). Enterprise plans available.","currency":"USD","freeTier":true,"sourceUrl":"https://cal.com/pricing","retrievedAt":"2026-10-02T16:26:03.883Z","freeTrialDays":14,"startingPrice":{"unit":"seat","amount":12,"period":"month","currency":"USD"},"billingPeriods":["month"]}` | `{"type":"subscription","plans":[{"free":true,"name":"Basic","summary":"Free tier","features":["Booking Page Designer","Multi-Location Availability","Calendar Integrations","Video Integrations","Website Embed"],"minSeats":1,"description":"One user, one connected calendar, one booking link with core features","contactSales":false}],"addOns":[{"name":"Additional phone numbers","components":[{"kind":"fixed","amount":4,"period":"month","currency":"USD"}]},{"name":"Security and Compliance Add-On"}],"summary":"Free plan available. Paid plans with detailed pricing not disclosed. 14-day free trial of Engage plan. Add-ons from $4/month.","currency":"USD","freeTier":true,"sourceUrl":"https://www.oncehub.com/pricing","retrievedAt":"2026-09-04T17:52:44.637Z","freeTrialDays":14,"billingPeriods":["month"]}` |
| pricing.free_tier | yes | yes |
| pricing.model | freemium | freemium |
| pricing.price_level | low | low |
| pricing.starting_price | `{"amount":12,"currency":"USD"}` | - |
| pricing.transparent | yes | no |
| security.certifications | `[{"name":"SOC 2 Type II","level":"Type II","status":"active","evidenceUrl":"https://cal.com/security"},{"name":"HIPAA","status":"active"},{"name":"ISO/IEC 27001","status":"active","evidenceUrl":"https://cal.com/security"},{"name":"GDPR","status":"active"},{"name":"CCPA","status":"active"}]` | `[{"name":"SOC 2 Type II","level":"Type II","status":"active"},{"name":"FERPA","status":"active"},{"name":"Section 508 / ADA Compliance","status":"active"}]` |
| security.disclosure_policy | yes | yes |
| security.gdpr | yes | yes |
| security.hipaa | yes | yes |
| security.iso27001 | yes | - |
| security.pci | yes | - |
| security.soc2 | yes | yes |
| security.trust_center | https://cal.com/compliance | https://www.oncehub.com/trustcenter/compliance/ferpa |

## Capabilities (Appointment Scheduling)

| Capability | Cal.com | OnceHub |
|---|:--:|:--:|
| **Capabilities** |  |  |
| Round robin | ✓ | ✓ |
| Collective scheduling | ✓ | - |
| Group events | ✓ | ✓ |
| Payments at booking | ✓ | ✓ |
| Website embed | ✓ | ✓ |
| Routing forms | ✓ | ✓ |
| Free tier | ✓ | ✓ |
| HIPAA available | ✓ | - |
| SOC2 | ✓ | ✓ |

*Source: vioscaleAI. Generated 2026-10-16T20:59:03.621Z. "-" = undocumented, not absent.*