OpenProject vs Stackfield
Both OpenProject and Stackfield are European-built, GDPR-compliant solutions in the project management space. This comparison breaks down their features, pricing, compliance posture, and data residency so you can make an informed choice for your team.
Quick Overview
OpenProject
EU- Headquarters
- Berlin, DE
- Pricing
- Free
- Open Source
- Yes
Stackfield
EU- Headquarters
- Munich, DE
- Pricing
- From €11/mo
- Open Source
- No
Key Differences
- OpenProject offers a free tier, while stackfield starts at €11/month. This makes OpenProject more accessible for individuals and small teams exploring their options before committing.
- OpenProject is open source, meaning you can audit the code, self-host, and avoid vendor lock-in. Stackfield is proprietary, which often means a more polished out-of-the-box experience and dedicated support, but less flexibility for customisation.
- Data residency differs: OpenProject hosts data in Germany, EU, while Stackfield hosts in Germany. If your organisation requires data to stay in a specific EU country, this distinction matters for compliance.
- Stackfield holds ISO 27001 certification, providing third-party assurance of its security practices. OpenProject does not currently hold these certifications, which may matter for enterprise procurement requirements.
- Each product has unique strengths: OpenProject offers Gantt charts and work packages and Agile boards (Scrum and Kanban), while Stackfield provides End-to-end encryption and Task management. Your choice depends on which capabilities matter most for your workflow.
Feature Comparison
| Feature | OpenProject | Stackfield |
|---|---|---|
| Name | OpenProject | Stackfield |
| Pricing | Free | From €11/mo |
| Free Tier | ||
| GDPR | ||
| ISO 27001 | ||
| Open Source | ||
| Headquarters | Berlin, DE | Munich, DE |
| Data Centers | DE, EU | DE |
| Gantt charts and work packages | ||
| Agile boards (Scrum and Kanban) | ||
| Time and cost tracking | ||
| Resource management | ||
| Document management | ||
| Built-in wiki | ||
| Meeting management | ||
| BIM support | ||
| REST API | ||
| Self-hosting option | ||
| End-to-end encryption | ||
| Task management | ||
| Video calls | ||
| Document collaboration | ||
| Chat channels | ||
| Audit logs | ||
| Custom workflows | ||
| GDPR by design |
Pricing Comparison
OpenProject
Freefree / enterprise
Stackfield
From €11/mosubscription
Compliance Comparison
OpenProject
GDPRDPA
Stackfield
GDPRISO 27001DPA
Get Started
Categories
How to Choose
You need code transparency or self-hosting
Choose OpenProject
You want a fully managed, turnkey solution
Choose Stackfield
You're a startup or individual on a budget
Choose OpenProject
Your procurement requires ISO 27001 certification
Choose Stackfield
You need enterprise-grade support and stability
Choose OpenProject
You prefer a nimble provider with personalised support
Choose Stackfield
OpenProject vs Stackfield — FAQ
What is the main difference between OpenProject and Stackfield?
Both OpenProject and Stackfield are European project management and team collaboration solutions with full GDPR compliance. The key differences lie in their approach: OpenProject is open source while Stackfield is proprietary, and OpenProject uses free / enterprise pricing while Stackfield uses subscription. OpenProject is headquartered in Berlin, Germany, while Stackfield is based in Munich, Germany. Your choice should depend on your specific requirements for features, pricing, and data residency.
Which is more affordable, OpenProject or Stackfield?
OpenProject offers a free tier, while stackfield starts at €11/month. Pricing models differ (free / enterprise vs. subscription), so compare based on your usage pattern rather than just the starting price.
Are both OpenProject and Stackfield GDPR compliant?
Yes. Both OpenProject and Stackfield are European companies that store data within the EU/EEA and offer Data Processing Agreements. Neither is subject to the US CLOUD Act or FISA surveillance. Additionally, Stackfield holds ISO 27001 certification. For GDPR purposes, either option eliminates the legal risks associated with using US-based services.