Cal Clear offers a simple, free platform for booking appointments and managing calendars. Below are 20 comparable tools that also provide free plans or open‑source solutions for scheduling meetings, client bookings, and service appointments.
Get targeted exposure with custom position pinning and highlighted placement.
Popular scheduling tool with a free tier that lets you create unlimited event types, integrate with Google/Outlook calendars, and embed booking links.
Free basic version for group polls and one‑to‑one meeting scheduling, with calendar sync and automatic time‑zone handling.
Free plan includes unlimited appointments, staff logins, and a public booking page; integrates with Zoom, Stripe, and social media.
Free tier provides unlimited bookings, custom branding, and integration with Google Calendar, Zoom, and payment gateways.
Free plan supports up to 100 appointments per month, two staff members, automated reminders, and two‑way calendar sync.
Free version offers a booking website, up to 50 bookings per month, and basic integrations (Google Calendar, Zoom).
Free for individual users; includes online booking, calendar sync, and payment processing via Square.
Free plan provides unlimited bookings, client self‑service portal, and integrations with Google/Outlook calendars.
Free tier for a single user with unlimited appointments, Zoom integration, and Zoho CRM connectivity.
Included at no extra cost with Microsoft 365 Business plans; offers a simple booking page and calendar sync.
Built‑in free feature of Google Calendar that lets you create shareable booking slots and syncs automatically with your calendar.
Free limited version (Acuity Free) supports one staff member, client self‑service booking, and basic calendar sync.
Free plan for a single user with unlimited bookings, automated reminders, and Google/Outlook calendar integration.
Free tier includes unlimited appointments, a public booking page, and email reminders; supports up to 5 staff members.
Free version offers basic online scheduling, calendar sync, and client notifications for small businesses.
Free plan provides a booking website, client reminders, and integration with Google Calendar.
Self‑hosted, open‑source scheduling system with customizable booking forms, resource management, and email notifications.
Free, open‑source appointment scheduler that integrates with Google Calendar and offers multi‑service, multi‑staff booking.
Free basic plan for solo practitioners; includes online booking, client reminders, and payment processing via Stripe.
Free tier for freelancers with unlimited bookings, video call links, and automatic calendar sync.