Cal Autobot vs Sarra

Cal Autobot is an email-based scheduling service for arranging meetings from existing conversations. CC it on an email thread and it can read the exchange, propose times, follow up, and send reminders. It monitors multiple calendars for conflicts and lets users choose a source of truth. A branded public booking page syncs with email bookings, while event details from emails, pictures, and itineraries can be turned into Google Calendar events. Its free Gmail Chrome extension tracks email opens and adds availability or a booking link with one click. Cal lists Google Calendar and says AI agents can fit into existing Calendly or Cal.com workflows. The service is available as a web product and extension, but Cal says it is winding down and is no longer accepting new customers; existing customers may continue while it remains available. The Free plan is free. Power Users is $12 a month, billed at $12 per user per month; listed custom AI features are marked “Coming soon.” Enterprise is priced on request, billed at $10k+.

Sarra is a web-based AI scheduling assistant that coordinates appointments through email. Add it to an email thread and it can suggest times, follow up, and send a calendar invitation after attendees agree. You can also name a particular time in an email for Sarra to check and book, or share the personal booking link included with each plan to show live availability. It connects with Google Calendar and Microsoft Outlook. Sarra can generate Google Meet links through a connected Google account and Teams links through an eligible Microsoft 365 work or school account. It does not connect to Zoom or create unique Zoom meetings, but can insert a Zoom URL saved in Settings. Monthly meeting allowances apply per seat, and scheduling pauses once an allowance is reached until renewal or upgrade. Free includes three meetings per month per seat, one saved meeting type, one calendar connection, and one follow-up nudge every two days. A single external sender is also limited to 10 inbound requests per day on Free, separate from the monthly allowance. Group scheduling is available on Gold and above.