Scheduling tools all do the same basic job — you share a link, people pick a time — but the real differences hide in what the free tier actually gives you, whether you can self-host, and how much enterprise routing and compliance cost. We compared Calendly, Cal.com, Doodle and OnceHub against their official pricing pages and feature lists (verified 2026-09-07) to figure out who each one is actually for. Cal.com takes the top rating (4.1/5) on price-to-value: a genuinely unlimited free individual plan, Teams at $12/mo/user billed annually ($15 monthly), and a self-hosting path through the MIT Cal.diy community edition (the hosted production core went closed-source in April 2026). Calendly is the default scheduling link (4.0 rating) with the widest integration set and the cheapest paid entry here — Standard at $10/seat/mo billed annually ($12 monthly) — and its seats count hosts, not invitees, a quirk that favors teams with many prospects and few bookers. OnceHub is the most feature-rich option for sales and customer success — routing forms, conversational booking, concurrent sessions and HIPAA on higher tiers — with Schedule at $10/seat/mo billed annually ($12 monthly), Route at $19/seat and Engage at $39/seat, but a steeper learning curve and an English-only interface. Doodle is purpose-built for group polling (ease 5/5) but trails on rating (3.7) and control, with Pro at $11/mo/user billed annually (EUR-billed shows lower). Reclaim.ai is the AI auto-blocking outlier: a free Lite tier (1 scheduling link, a 1-week horizon) that is a real one-seat tool, then Starter at $10/seat/mo annual, Dropbox-owned since 2024 and SOC 2 Type II. The short answer: Cal.com wins for free and open-source flexibility, Calendly has the biggest integration ecosystem, OnceHub leads for enterprise sales teams, and Doodle is only worth it if group polls are 90% of what you do.
The category's top rating (4.1/5) at the strongest price-to-value in the class: Teams at $12/mo/user billed annually ($15 monthly). Its control edge now runs through the MIT Cal.diy community edition (the hosted production core went closed-source in April 2026), paired with a genuinely unlimited free individual plan. Pick it when data ownership or customization matters as much as booking.
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 (4.0 rating): the smoothest booking experience and the widest integration set in the category. Standard at $10/seat/mo billed annually ($12 monthly) is the cheapest paid entry here, and seats count hosts rather than invitees - a genuine quirk that favors teams with many prospects and few bookers.
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 is the most feature-rich scheduling platform on this list for sales and customer success teams — routing forms, conversational booking, concurrent sessions, and HIPAA compliance on higher tiers. Schedule plan starts at $10/seat/mo billed annually ($12 monthly), with Route at $19/seat and Engage at $39/seat. The trade-off: steeper learning curve than Calendly, and the English-only interface means it is not the pick for Asia-facing teams.
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 it trails on rating (3.7) and control. Pro at $11/mo/user billed annually (EUR-billed shows lower). Pick it when 'which of these 8 slots works for 6 people' is the actual job, not 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: If you want free unlimited scheduling, start with Cal.com — its individual tier is genuinely free with no caps on event types or calendars (a self-host option also exists via the MIT Cal.diy community edition, though the hosted core went closed-source in April 2026). If you want the most polished, best-integrated option and do not mind paying $10/seat/mo for it, Calendly is the safe default. OnceHub is the pick for enterprise sales teams that need routing, HIPAA and conversational booking. Skip Doodle unless group polls are almost the whole reason you are shopping for a scheduler.
Cal.com at 4.1/5 - the category's top independent score, and also the only tool here that is open source and self-hostable. Calendly follows at 4.0 for polish and integrations, Doodle at 3.7 for group polling.
Calendly Standard at $10/seat/mo billed annually ($12 monthly) - the lowest entry in the class. Cal.com Teams is $12/mo/user annual ($15 monthly); Doodle Pro is $11/mo/user billed annually.
Cal.com is the only one - open source and self-hostable (verified), a unique data-control advantage in this category. Calendly and Doodle are cloud-only.