Cal.com vs Missive
What each one’s own pages state, side by side. Every value is a quote AirStack found on that product’s pages; “Not observed” means AirStack has not found it on that product’s pages.
| Cal.com | Missive | |
|---|---|---|
| What it says it does | Scheduling Software for Online Bookings cal.com | Inbox collaboration for teams that run on email missiveapp.com |
| Starting at | $12 Teams · per user / month | $14 Starter · per user / month |
| Platforms | Not observed | Android, Windows, iOS, macOS missiveapp.com |
| Integrations | Salesforce, Slack, HubSpot, Amie, Apple Calendar, CalDav, Google Calendar, Microsoft Exchange, Notion Calendar, Outlook Calendar, Zoho Calendar, Cal Video, Google Meet, Jitsi Video, Microsoft 365/Teams, Riverside, Webex, Whereby, Zoom Video, Attio, Close.com, HubSpot CRM, Pipedrive CRM, Zoho Bigin, ZohoCRM, Alby, BTCPayServer, Cal Pay, HitPay, Paypal, Stripe, Cal.ai, ElevenLabs, Make, Pipedream, Raycast, Retell AI, Zapier, n8n, Fathom, Google Analytics, Google Tag Manager, Matomo, Meta Pixel, Plausible, Posthog, Umami, Signal, Telegram, WhatsApp, Framer, Giphy, Granola, Linear, QR Code, Wordpress cal.com | ClickUp, Dialpad, HubSpot, Asana, Facebook, Gmail, Office 365, Pipedrive, Trello, Twilio, ChatGPT by OpenAI, Claude by Anthropic, Gemini AI by Google, Attio MCP, ClickUp MCP, Custom MCP, Linear MCP, Notion MCP, Stripe MCP, Todoist MCP, Integrately, Lindy.ai, Make, Zapier, Close, Daylite, FullContact, Salesforce, Aircall, Giphy, Missive Video call, Quo, Zoom, Dropbox, Google Drive, Todoist, ChargeDesk, Shopify, GitHub, Retool missiveapp.com |
| Compliance | CCPA, GDPR, HIPAA, ISO 27001, SOC 2 cal.com | GDPR, SOC 2 missiveapp.com |
| Free plan | Yes cal.com | Not observed |
| Plans | Teams, Organizations, Enterprise, Individuals, ESSENTIALS, Platform cal.com | Business, Productive, Starter missiveapp.com |
| Open source | Yes cal.com | Not observed |
| Models supported | Not observed | Gemini missiveapp.com |
| Pricing basis | Not observed | per user/month missiveapp.com |
| Customers (their claim) | Not observed | 6500+ companies rely on Missive every day missiveapp.com |
Where they differ
- Cal.com’s pages state a free plan; AirStack has not found that on Missive’s pages.
- Cal.com’s pages state that it is open source; AirStack has not found that on Missive’s pages.
- Cal.com claims HIPAA on its own pages; Missive’s pages read by AirStack do not mention it.
- Cal.com claims ISO 27001 on its own pages; Missive’s pages read by AirStack do not mention it.
Prices are list prices as written on each pricing page; check them before you buy. Nothing here is a ranking or a recommendation.