Calendly is the most recognized name in online scheduling, offering a polished experience with easy link-sharing. The free plan covers one event type; paid plans start at $10/month for group events, routing forms, and CRM integrations. Round-robin is available on Teams ($16/month per seat). Trade-offs: limited branding on lower tiers, subscription-only pricing, and API access reserved for higher plans.
Cal.com is the leading open-source scheduling platform, ideal for developers and teams who value transparency. The free tier is generous with unlimited event types and calendar connections. Paid plans ($12/month) add SMS reminders, custom domains, and advanced routing. Round-robin and collective booking work out of the box. Self-hosting is available but requires DevOps knowledge.
Acuity Scheduling (now part of Squarespace) targets service-based businesses with strong intake forms and integrated payments via Stripe, Square, and PayPal. It supports Google, Outlook, and iCloud sync with robust reminders. No free plan (starts at $16/month), no round-robin, and no custom domains — best for individuals or small practices.
Your Calendar is built for solopreneurs and small teams who want full-featured scheduling without a monthly subscription. Pay once and own it — no recurring fees. Includes team scheduling with round-robin, calendar sync across Google/Outlook/iCloud, embeddable widgets, payments, reminders, custom branding, custom domains, and API access.
Doodle pioneered the group scheduling poll — propose time slots and let participants vote. Great for cross-organization coordination. Paid plans ($6.95/month+) add branding and ad-free pages. However, it's not a traditional booking tool: no embed widget, no API, no payments, and no recurring events.
HubSpot Meetings is a free scheduling tool built into the HubSpot CRM. Every booking auto-creates or updates a contact record and can trigger workflows. Includes round-robin and group booking. Limitations outside the HubSpot ecosystem: no payments, no SMS reminders, no custom domains, and branding requires a paid CRM tier.
Koalendar takes a minimalist approach: clean interface, quick setup, and a free plan covering a booking page, calendar sync, and email reminders. Paid plans ($6.99/month) add custom branding. Lacks team scheduling, round-robin, payments, and API access — best for freelancers who just need a simple booking link.
Setmore targets service businesses like salons, clinics, and studios. The free plan covers up to four staff profiles, a booking page, calendar sync, and Square payments. Paid plans ($5/month+) add SMS reminders and Zoom integration. No round-robin or custom domains, but a solid fit for brick-and-mortar businesses.
Microsoft Bookings comes bundled with Microsoft 365 Business plans ($6/month per user), integrating deeply with Outlook and Teams. Includes custom branding, SMS reminders, group booking, recurring events, and an embeddable widget. Main limitation: Outlook-only calendar sync, no payments, and limited design customization.
TidyCal offers a one-time $29 lifetime deal via AppSumo with Google/Outlook sync, an embed widget, Stripe payments, and email reminders. Simple and budget-friendly, but no team scheduling, no round-robin, no recurring events, and no API. Ideal for solopreneurs who want low-cost basics.
Lunacal is a newer AI-powered scheduling tool that creates rich, branded booking pages with personal bios and portfolio highlights. Syncs with Google and Outlook, supports email reminders, and offers an embed widget. Pricing starts at $10/month. Still maturing: no team scheduling, no payments, and no API yet. Best for coaches and creators.