Scheduling tools all advertise a free tier, but the real question is what you can actually run without paying. We compared the free plans of Cal.com, Calendly, OnceHub, Doodle and Reclaim.ai against their official pricing pages (verified 2026-08-31 through 2026-09-11) to see which free tiers you can build a habit around. The short answer: Cal.com's free individual tier is the most generous (unlimited event types and calendars, plus a self-host path via the MIT-licensed Cal.diy community edition after the hosted production core went closed-source in April 2026), Reclaim.ai's free Lite tier is the most modern (a 1-week auto-scheduling horizon plus 5 AI agents, one Scheduling Link), and Doodle's free plan is the most limited (1 group poll, 1 booking page, 1 one-on-one). Where the paid doors open: Cal.com Teams runs $15/mo/user annual, OnceHub Schedule starts at $10/seat/mo annual ($12 monthly, with HIPAA security add-ons at $5-6/user/mo extra), Doodle Pro is $11/mo/user annual-billed, and Reclaim.ai Starter is $12/seat/mo monthly (or $10/seat/mo billed annually). All five free tiers exist, but only Cal.com's is genuinely unlimited for a solo professional: the other four cap bookings, event types, automation runs or seats inside the free tier.
The strongest free individual plan in the category — unlimited bookings, verified on the official pricing page — and the only tool here with a self-host path via the MIT-licensed Cal.diy community edition (the hosted production core went closed-source in April 2026), which earns it a 5/5 value score. Teams start at $12/mo/user billed annually ($15 monthly). It leads the category overall (4.1/5) because that free tier plus the self-host option covers both the founder and the scale-up.
Free tier: Yes
Paid from: $12/mo/user (Teams; billed annually ($15 monthly); individual plan free unlimited event types & calendars; Organizations $28/mo/user annual (SSO, SCIM, compliance))
Cal.com is highly customizable scheduling that puts you in control of your data. Note: the hosted core went closed-source in April 2026; the MIT community edition continues as Cal.diy.
The default scheduling link, with a free plan that is usable but deliberately thin: one event type, one calendar, Calendly branding. The workflow unlocks at Standard $10/seat/mo billed annually ($12 monthly). Seat pricing counts hosts, not invitees — a genuine quirk that favors teams with many prospects and few bookers. Integration depth is the category standard.
Free tier: Yes
Paid from: $10/mo/seat (Standard $10/seat/mo billed annually ($12 monthly); Teams $16/seat/mo annual (round-robin, routing); Enterprise from $15k/yr (50-seat min); Notetaker & Callie AI sold as Plus add-on tiers on Standard/Teams, English-only; free = 1 event type, 1 calendar)
Calendly is the most popular scheduling tool, integrating your calendar with team routing.
OnceHub Basic is free forever and gives you 1 user with limited booking pages — enough to test whether the routing and enterprise features justify the upgrade. The paid entry is Schedule at $10/seat/mo billed annually ($12 monthly), which is comparable to Calendly's Standard tier. The catch: steeper learning curve and English-only, so it is not the pick if you just want a simple booking link.
Free tier: Yes · 14-day free trial on paid plans
Paid from: $10/seat/mo (Basic $0 free forever (1 user, limited booking pages); Schedule $10/seat/mo annual ($12 monthly); Route $19/seat/mo annual ($23 monthly); Engage $39/seat/mo annual ($47 monthly); Enterprise custom pricing; Security & Compliance add-on $5-6/user/mo extra for HIPAA)
Purpose-built for finding a time among several people — group poll scheduling is the fastest path in the class (ease 5/5). But its free plan is heavily limited in 2026 pricing (verified), and Pro costs $11/mo/user billed annually. Pick it when 'which of these 8 slots works for 6 people' is the actual job; skip it for one-to-one booking.
Free tier: Yes
Paid from: $11/mo/user (Pro; billed annually (EUR shows lower); Team $16/mo/user annual; free plan 1 group poll, 1 booking page, 1 one-on-one; heavily limited 2026)
Doodle is group poll scheduling that makes it fast to find a meeting time with several people.
Free tier: Yes · 14-day Business trial
Paid from: $10/seat/mo (Lite free forever (1 Scheduling Link, 1 Habit, 1 Calendar Sync, 5 AI Agents, 1-week scheduling horizon); Starter $10/seat/mo annual up to 10 seats (3 Scheduling Links, 3 Smart Meetings, unlimited Habits, 8-week range); Business $15/seat/mo annual up to 100 seats (unlimited Scheduling Links & Smart Meetings, OOO Calendar, Delegated Access, 12-week range); Enterprise $22/seat/mo annual 100+ seats (SSO, SCIM, Domain Capture). Monthly billing ≈ $12/$18.)
Reclaim.ai is an AI scheduling layer that auto-blocks tasks, defends focus time and reschedules meetings across Google and Outlook calendars — owned by Dropbox since 2024.
Bottom line: Cal.com's free individual tier is the clear winner — unlimited event types, unlimited calendars, and a self-host path via the MIT Cal.diy community edition (its hosted production core went closed-source in April 2026). Calendly's free tier is too restricted (1 event type) to be more than a trial. OnceHub Basic is worth trying if you think you will need enterprise routing and HIPAA later. Doodle's free plan is the most limited — just 1 group poll and 1 booking page.
Cal.com — a verified unlimited free individual plan (bookings, calendar connections), the strongest in the category. Calendly's free tier is limited to 1 event type; Doodle's free plan is heavily restricted in 2026.
Self-hosting is possible only with Cal.com, via the MIT-licensed Cal.diy community edition — the hosted production core went closed-source in April 2026, and Cal.diy drops team management, workflows and analytics. Neither Calendly nor Doodle offers self-hosting.
Cal.com Teams $12/mo/user billed annually ($15 monthly); Calendly Standard $10/seat/mo annual ($12 monthly, seats count hosts); Doodle Pro $11/mo/user annual.