Cal.diy (Cal.com community edition)
98 · HealthyMIT-licensed community fork of Cal.com with booking pages and calendar integrations; enterprise features removed.
Open source Scheduling
Rallly
70 · StableGroup scheduling polls for finding a meeting time without accounts.
Easy!Appointments
69 · StableAppointment booking app for service businesses, with Google Calendar sync.
Directory / Scheduling / Easy!Appointments
Easy!Appointments
Appointment booking app for service businesses, with Google Calendar sync.
Will it still be around?
Health 69/100 · Stable
Activity, bus factor and issue responsiveness. Breakdown
Alternative to
Savings proposal
A 25-seat team on Calendly Teams pays about $400 a month. Self-hosting Easy!Appointments costs about $132 a month to run plus $480 to set up, so it pays for itself in month 2 and saves about $9,168 over three years.
List price: Calendly Teams, billed annually. Standard is $10 per seat. Teams gets cheaper per seat above 30 seats. Source, checked 2026-10-07.
Saved over 3 years
$9,168
Pays for itself
Month 2
Saved in year one
$2,736
Each month
$400 → $132
Show as a table
| Month | Calendly | Self-hosted | Difference |
|---|---|---|---|
| Today | $0 | $480 | −$480 |
| Month 3 | $1,200 | $876 | $324 |
| Month 6 | $2,400 | $1,272 | $1,128 |
| Month 9 | $3,600 | $1,668 | $1,932 |
| Month 12 | $4,800 | $2,064 | $2,736 |
| Month 18 | $7,200 | $2,856 | $4,344 |
| Month 24 | $9,600 | $3,648 | $5,952 |
| Month 30 | $12,000 | $4,440 | $7,560 |
| Month 36 | $14,400 | $5,232 | $9,168 |
Assumptions you can change
Self-hosting Easy!Appointments usually means one small container and a database. Hours are for one engineer; the server cost is a typical cloud VPS with backups and grows with the number of people using it.
Not included: paid editions or features of Easy!Appointments (see What's free?), large data migrations, and compliance work. All amounts in US dollars at list price; your negotiated price may differ.
Health score: 69/100
Activity45% weight
100/100
- Last commit yesterday (100/100).
- 310 commits in the past 12 months (100/100).
- 6 releases in the past 12 months (100/100).
Bus factor30% weight
4/100
- Top contributor wrote 97% of the last 91 commits (past 12 months).
- 2 people authored those commits.
Responsiveness25% weight
90/100
- 90% of all issues are closed (143 open, 1269 closed) (100/100).
- 25 of 30 recent issues got a reply or were closed (83/100).
Score v2. How the health score works.
License
GNU General Public License v3.0 · Open source (copyleft)
OSI-approved license that requires sharing changes under the same license when you distribute (AGPL: also when you offer it over a network).
Detected by GitHub as GPL-3.0.
What's free?
Enterprise features many open-core projects keep for paid plans.
| Feature | Self-hosted, free? |
|---|---|
| SSO (SAML) | Unknown |
| SSO (OIDC) | Unknown |
| SCIM provisioning | Unknown |
| Audit logs | Unknown |
| Role-based access control | Unknown |
| Multi-tenancy | Unknown |
We haven't verified which of these features are free for this project yet.
GitHub metrics
| Stars | 4.4k | Forks | 1.6k |
|---|---|---|---|
| Last commit | yesterday | Commits, 12 months | 310 |
| Releases, 12 months | 6 | Last release | 4 months ago |
| Contributors | 100 | Active authors | 2 in last 91 commits |
| Open issues | 143 | Closed issues | 1.3k |
Snapshot from 2026-10-08.