ScheduleOnce (now part of OnceHub) offers robust online booking, calendar syncing, and automated workflow features for businesses of all sizes. Below is a curated list of 20 alternative appointment‑scheduling platforms that provide similar or complementary capabilities.
Get targeted exposure with custom position pinning and highlighted placement.
User‑friendly scheduling tool with calendar integration, automated reminders, and team routing rules.
Full‑featured booking solution with client intake forms, payment processing, and customizable branding.
Free tier includes online booking, staff calendars, and video meeting links (Zoom/Telehealth).
Poll‑based meeting scheduler ideal for group coordination, with calendar sync and automatic time‑zone handling.
Web‑based booking page, integrates with Google/Office 365 calendars, and supports multi‑step workflows.
Instant booking widget, SMS/email reminders, and built‑in payment gateway for services and classes.
Customizable booking website, class scheduling, and client management with marketing automation.
Appointment platform with two‑way calendar sync, automated reminders, and a built‑in video conferencing hub.
Integrated POS and booking system for service businesses, includes payment processing and client notes.
Enterprise‑grade scheduling with AI‑driven routing, analytics, and CRM integrations (Salesforce, HubSpot).
Online booking with class management, recurring appointments, and automated email/SMS confirmations.
Simple booking page that pulls availability from Google or Outlook calendars and supports custom branding.
Part of Zoho suite; offers calendar sync, payment collection, and integration with Zoho CRM and Desk.
Embedded in Microsoft 365; provides staff calendars, automated reminders, and Teams meeting links.
Free meeting scheduler that syncs with HubSpot CRM, auto‑populates contact records, and offers custom URLs.
All‑in‑one client portal with scheduling, invoicing, and marketing automation for service professionals.
Healthcare‑focused appointment system with patient intake forms, insurance verification, and telehealth links.
Marketplace‑style booking platform for wellness, beauty, and fitness businesses with class scheduling.
Simple online scheduler with customizable booking pages, payment integration, and Zapier connectivity.
Embedded Calendly experience inside Microsoft Teams, enabling quick meeting booking without leaving the chat.