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 / Rallly
Rallly
Group scheduling polls for finding a meeting time without accounts.
Will it still be around?
Health 70/100 · Stable
Activity, bus factor and issue responsiveness. Breakdown
Alternative to
Savings proposal
A 25-user team on Doodle Team pays about $224 a month. Self-hosting Rallly costs about $132 a month to run plus $480 to set up, so it pays for itself in month 6 and saves about $2,823 over three years.
List price: Doodle Team, billed annually. Pro is $6.95 per user. Source, checked 2026-10-07.
Saved over 3 years
$2,823
Pays for itself
Month 6
Saved in year one
$621
Each month
$224 → $132
Show as a table
| Month | Doodle | Self-hosted | Difference |
|---|---|---|---|
| Today | $0 | $480 | −$480 |
| Month 3 | $671 | $876 | −$205 |
| Month 6 | $1,343 | $1,272 | $71 |
| Month 9 | $2,014 | $1,668 | $346 |
| Month 12 | $2,685 | $2,064 | $621 |
| Month 18 | $4,028 | $2,856 | $1,172 |
| Month 24 | $5,370 | $3,648 | $1,722 |
| Month 30 | $6,713 | $4,440 | $2,273 |
| Month 36 | $8,055 | $5,232 | $2,823 |
Assumptions you can change
Self-hosting Rallly 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 Rallly (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: 70/100
Activity45% weight
100/100
- Last commit today (100/100).
- 1569 commits in the past 12 months (100/100).
- 46 releases in the past 12 months (100/100).
Bus factor30% weight
0/100
- Top contributor wrote 100% of the last 99 commits (past 12 months).
- 1 people authored those commits.
Responsiveness25% weight
100/100
- 99% of all issues are closed (2 open, 319 closed) (100/100).
- 30 of 30 recent issues got a reply or were closed (100/100).
Score v2. How the health score works.
License
GNU Affero 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 AGPL-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 | 5.3k | Forks | 565 |
|---|---|---|---|
| Last commit | today | Commits, 12 months | 1.6k |
| Releases, 12 months | 46 | Last release | 2 days ago |
| Contributors | 34 | Active authors | 1 in last 99 commits |
| Open issues | 2 | Closed issues | 319 |
Snapshot from 2026-10-08.