Calendar & Scheduling · Vendor file
Cal.com
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A fully customizable scheduling software for individuals, businesses taking calls and developers building scheduling platforms where users meet users.
Active · verified September 2026
Categories Cal.com serves
The B4 Index places Cal.com in 2 categories. Each category page lays out the build-versus-buy considerations for that decision.
Calendar & Scheduling Primary Free (self-hosted) or $12-37/user/month (cloud)
Online Appointment Scheduling & Booking Links Open-source free; hosted paid tiers
Cal.com compared
The B4 Index scores every software category on two axes, strategic differentiation and AI feasibility, to
classify it Build, Buy, Bridge, or Beware. Vendor facts here are independent of that call. See the full
methodology.