Transparent pricing. No surprises.
Every Saturnis product ships as fully-functional open-source software. Upgrade to a commercial license when you need proprietary rights, enterprise integrations, or dedicated support.
Cassini Community
AGPL v3
Free
- ▷Full source code (AGPL v3)
- ▷Control charts, capability analysis, Nelson rules, short-run SPC
- ▷Dashboard with violation tracking
- ▷Manual data entry
- ▷MQTT / Sparkplug B connectivity
- ▷Show Your Work (computation transparency)
- ▷Audit trail
- ▷User management with role-based access
- ▷REST API
- ▷SQLite database
- ▷Self-hosted deployment
- ▷Community support via GitHub
- ▷Modify and extend (AGPL share-alike)
Cassini Commercial
$299 / site / mo
Billed annually. Includes all commercial features.
- ▷Everything in Cassini Community, plus:
- ▷OPC-UA connectivity
- ▷Anomaly detection (ML-based)
- ▷MSA / Gage R&R
- ▷First Article Inspection (AS9102)
- ▷Electronic signatures (21 CFR Part 11)
- ▷Scheduled & automated reporting
- ▷DOE (Design of Experiments)
- ▷AI-powered analysis
- ▷Multivariate SPC
- ▷Multi-site management
- ▷Unlimited data source connections
- ▷Enterprise databases (PostgreSQL, MSSQL, MySQL)
- ▷SSO / OIDC integration
- ▷Data retention policies
- ▷Proprietary modifications allowed
- ▷Dedicated support with SLA
- ▷Priority bug fixes
Side by side
| Feature | Cassini Community | Cassini Commercial |
|---|---|---|
| SPC Engine | ||
| Control charts (X-bar, R, S, p, np, c, u, CUSUM, EWMA) | ✓ | ✓ |
| Capability analysis (Cp, Cpk, Pp, Ppk, Cpm) | ✓ | ✓ |
| Nelson / WECO / AIAG run rules | ✓ | ✓ |
| Short-run SPC (deviation + Z-score) | ✓ | ✓ |
| Show Your Work (computation transparency) | ✓ | ✓ |
| Non-normal distribution fitting | — | ✓ |
| Run rule preset management | — | ✓ |
| Data | ||
| Manual data entry | ✓ | ✓ |
| MQTT / Sparkplug B connectivity | 1 broker | Unlimited |
| OPC-UA connectivity | — | ✓ |
| RS-232 / USB gage bridge | — | ✓ |
| ISA-95 plant hierarchy | Single plant | Multi-plant |
| Quality Systems | ||
| MSA / Gage R&R | — | ✓ |
| First Article Inspection (AS9102) | — | ✓ |
| Electronic signatures (21 CFR Part 11) | — | ✓ |
| DOE (Design of Experiments) | — | ✓ |
| Analytics & Reporting | ||
| Dashboard & violation tracking | ✓ | ✓ |
| Anomaly detection (ML) | — | ✓ |
| Multivariate SPC (T-squared, MEWMA) | — | ✓ |
| AI-powered analysis | — | ✓ |
| Predictive analytics | — | ✓ |
| Scheduled & automated reporting | — | ✓ |
| Ishikawa root cause diagrams | — | ✓ |
| Administration | ||
| User management & RBAC | ✓ | ✓ |
| Audit trail | ✓ | ✓ |
| SSO / OIDC | — | ✓ |
| Data retention policies | — | ✓ |
| ERP / MES integration | — | ✓ |
| Push notifications | — | ✓ |
| Infrastructure | ||
| Database | SQLite | PostgreSQL, MSSQL, MySQL |
| REST API | ✓ | ✓ |
| Source code access | ✓ | ✓ |
| Modification rights | AGPL (share-alike) | Proprietary |
| Support | Community (GitHub) | Dedicated with SLA |
| Updates | Community releases | Priority releases |
Common questions
Can I use Cassini Community in production?
Yes. Cassini Community is fully functional production software, not a trial or demo. The only restriction is the AGPL license: if you distribute modified versions, those modifications must also be open source.
What happens if my Cassini commercial license expires?
Your Cassini deployment continues to work — we never kill a running system. You lose access to priority support, updates, and commercial-only features. You can always fall back to Cassini Community.
Do I need a license for development or testing?
No. Cassini Community covers development, testing, and evaluation. You only need a commercial license when you want commercial-only features, proprietary modification rights, or dedicated support in production.
How does the AGPL affect my company?
The AGPL requires that if you modify Cassini and provide it as a service (even internally over a network), you must make your modifications available under the AGPL. A commercial license removes this requirement, letting you keep modifications private.
What databases are supported?
Cassini Community uses SQLite — zero-config, file-based, and production-capable for single-plant deployments. Commercial licenses add PostgreSQL, MySQL, and MSSQL support for enterprise environments. You can switch databases at any time.
Can I connect shop floor equipment directly?
Cassini Community includes MQTT / Sparkplug B connectivity for one broker. Commercial licenses add OPC-UA support, unlimited simultaneous connections, and RS-232/USB gage bridge for direct measurement tool connectivity.