book
The premium Open Source alternative to Calendly
🎯 Best for:Users requiring full control over scheduling data.
What is book?
Replaces Calendly and Acuity Scheduling for appointment management. Provides a private booking engine with direct calendar synchronization and customizable availability logic.
Tech Stack
GoCalendar & Scheduling
Why book?
- • Privacy-focused architecture
- • No per-user fees
- • Simple Docker deployment
Limitations
- • Fewer integrations than SaaS
- • Manual update management
- • No managed hosting option
4/14/2026
Last Update
0
Forks
0
Issues
Unknown
License
Financial Leak Detected
Stop the "SaaS Tax"
Your team could be burning cash. Switching to book instantly boosts your runway.
Competitor Cost
-$1,440
/ year (est. based on Calendly)
Self-Hosted
$0
/ year
Team Size10 Users
150+
SAVE 100%