Hosted by a French provider - your data stays under control
Online appointment booking,
Online appointment booking,
with more control over your data.
Alt-Cal is a simple, open-source booking application, built for businesses committed to digital sovereignty and #MadeInFrance
Everything you need, nothing you don't
Everything to manage your appointments simply and efficiently.
Calendar & availability
Set your open slots, breaks and exceptions — your calendar is always ready.
Personalized booking page
A public page in your brand (logo, colors) where your clients book on their own.
Automatic notifications
A new booking, a reschedule, or a cancellation: you're always informed without having to watch.
Client directory
Every booking automatically enriches your client file, always kept up to date.
Choose the plan that fits your business
Start for free. Upgrade to unlimited as your business grows.
Free
To get started and try it out
0€
/ month
- 5 appointments per month
- 1 service
- Calendar and availability
- Customizable booking page
Unlimited
Unlimited
For a busy, growing business
15€
/ month
-- or --
75€
/ 6 months
- Everything in the free plan
- Unlimited services
- Unlimited appointments
- File sending