How to Build Your Own OnceHub
Replace OnceHub with a custom build. Online Appointment Booking Software - Unmatched Free Plan
Build Difficulty: 3/5
Plan for 1-2 weeks of building with AI assistance
Estimated Timeline
Based on 127 features at 1-2 Weeks difficulty, expect about 1-2 weeks with AI-assisted development.
Recommended Tech Stack
Full-stack React framework with API routes and server components
PostgreSQL database, auth, and real-time subscriptions
Utility-first styling for rapid UI development
Key Features to Replicate
Top features across 8 categories. See all 127 features
Compliance(13 features)
Obtain consent at the beginning of chatbot conversations
Apply cookie policies to chatbots and routing forms
Send all guest email notifications from corporate email address
Require all new booking calendars be created from templates
Full compliance with FERPA regulations
+8 more in this category
Meeting Management(13 features)
Collect name, email, and relationship information for additional meeting guests
Automatically allow multiple bookings per host per time slot as separate meetings
Support dynamic and fixed video links, phone, and physical addresses with optional room reservation
Allow multiple guests to book independently and join the same meeting
Enable guests to upload documents, images, or files
+8 more in this category
AI(11 features)
Introduce AI-powered chatbot capabilities for scheduling assistance
Natural language chatbot interactions
AI features are off by default and can only be enabled by account owner
Route to the best engagement option using AI or predefined rules
Schedule meetings through intelligent chatbot experience
+6 more in this category
Availability Management(10 features)
Control workload with daily, weekly, and monthly booking limits
Set open-ended, fixed, or rolling booking windows
Avoid surprises with configurable lead time in minutes, hours, or days
Set location type and venues per time block
Add preparation and cleanup time before and after meetings
+5 more in this category
Forms & Routing(9 features)
Let guests narrow down booking options with predefined user attributes
Create custom booking forms with multiple field types
Create routing forms with conversational interactions to qualify and route leads
Deploy routing forms as standalone pages or embedded on website
Qualify, route, and schedule without leaving the form
+4 more in this category
Integrations(8 features)
Build custom integrations with APIs and Webhooks
Connect multiple calendars including Google, Microsoft 365, Exchange, and iCloud
Native integrations with Salesforce and HubSpot for lead management
Build custom integrations using APIs, Webhooks, and Zapier
Integrate with Gmail and Microsoft 365 for email notifications
+3 more in this category
Phone(8 features)
Get a fixed phone number for each booking calendar and booking hub
Allow guests to leave a message as part of or instead of booking
Offer multiple location options during phone booking
Offer different conversation flows based on booking hub configuration
Allow guests to book appointments using everyday natural language on phone
+3 more in this category
Security(7 features)
Set password, session, and account lockout policies
Enterprise-level security features for all plans
Set users' data and action permissions by their role
Enterprise SSO capability for centralized authentication
Invisible CAPTCHA to ensure only humans can book
+2 more in this category
Cost Calculator
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Build It Yourself
Total Cost Comparison
DIY hosting estimate based on Vercel + Supabase free/pro tiers (~$20/mo). Build time estimated from 127 features at moderate complexity.