Top 30 Free Appointment Scheduling Software Integrations for Calendars

Curated list of the best free appointment scheduling tools that seamlessly integrate with popular calendar platforms (Google Calendar, Outlook, iCal, etc.).

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Verified Options & Solutions

Popular scheduler with a free tier; two‑way sync with Google, Outlook, Office 365 and iCloud calendars.

#3 Doodle

Free poll‑based scheduling; integrates with Google Calendar, Outlook and iCal for automatic event creation.

Built‑in Google Calendar feature; lets you create bookable slots that sync instantly with your calendar.

Free with most Microsoft 365 plans; integrates directly with Outlook calendar and Teams.

Free meeting scheduler that writes appointments to your Google or Office 365 calendar and adds contacts to HubSpot CRM.

#7 Setmore

Free plan supports unlimited appointments; two‑way sync with Google Calendar and Outlook.

#8 10to8

Free tier (up to 100 appointments/month); integrates with Google, Outlook, iCal and Zoom.

Free plan for up to 50 bookings/month; syncs with Google Calendar, Outlook and iCal.

Free for individuals; automatically adds bookings to Google Calendar and iCal.

Free tier with unlimited users; integrates with Google Calendar, Office 365 and iCloud.

Free plan for one staff member; two‑way sync with Zoho Calendar, Google Calendar and Outlook.

#13 Bookafy

Free plan (up to 5 staff); syncs with Google Calendar, Outlook and iCal.

#14 Appointy

Free tier (up to 50 appointments/month); integrates with Google Calendar, Outlook and iCal.

#15 TimeTap

Free plan for solo practitioners; two‑way sync with Google Calendar and Outlook.

Open‑source, self‑hosted scheduler; can be linked to external calendars via iCal feeds.

Free tier (up to 1 calendar); syncs with Google Calendar and Outlook.

#18 MeetFox

Free plan includes unlimited bookings; integrates with Google Calendar and iCal.

#19 Koalendar

Free version for solo users; two‑way sync with Google Calendar, Outlook and iCloud.

Open‑source platform with a free hosted tier; supports Google, Outlook and iCal integrations.

Free basic plan; syncs appointments with Google Calendar and Outlook.

#22 Vcita

Free starter plan; integrates with Google Calendar and Outlook.

Open‑source, self‑hosted scheduler; can export iCal feeds for calendar sync.

#24 Setster

Free tier for small businesses; two‑way sync with Google Calendar and iCal.

Free basic version; integrates with Google Calendar and Outlook via iCal links.

30‑day free trial with full features; syncs with Google, Outlook, iCloud and Office 365 calendars.

Free plan for solo providers; integrates with Google Calendar and iCal.

Free tier (up to 50 bookings/month); two‑way sync with Google Calendar and Outlook.

Free version for Microsoft Teams users; syncs with Outlook and Teams calendars.

#30 FreeBusy

Free plan for basic scheduling; integrates with Google Calendar, Outlook and iCal.

Free starter tier; auto‑syncs bookings with Google Calendar and iCal.

Free Chrome extension that adds a scheduling button to Gmail; writes appointments directly to your Google Calendar.

Free integration that adds Zoom meeting links to Calendly events and syncs with Google/Outlook calendars.

Native Google Meet integration; creates Meet links in Google Calendar events generated by any free scheduler.