Stackfield
🇩🇪 DE · from €9/user/mo
4.8/5· 179 reviews across 4 portals
German project workspace with end-to-end encryption and EU-only data processing
Replaces
Stackfield is sought as a European alternative to:
Features
Task Management
- List, Kanban and Gantt views
- Custom fields, subtasks and checklists
- Milestones, dependencies and automatic scheduling
- Critical path analysis and workflow templates
- Time tracking and task import
- Email forwarding to Stackfield (Premium and above)
Project Planning
- Project details and budget planning
- Project portfolios (Premium and above)
- PERT charts (Premium and above)
- Room content export
Communication & Collaboration
- Team chat and thread-based discussions
- Polls and 1:1 calls
- Audio and video conferences with screen sharing
- Appointments with external users (no Stackfield account required)
Knowledge & File Management
- File storage with preview for Word, Excel and PowerPoint (Premium and above)
- Whiteboards (Premium and above)
- Text editor and templates
Security & Compliance
- Data storage exclusively on EU servers
- ISO 27001 certification and BSI C5 attestation
- Granular permission management and recycle bin (Premium and above)
- 2FA via app, mandatory 2FA (Premium and above), YubiKey support (Enterprise)
- IP whitelisting and advanced password policies (Premium and above)
Pricing
- Max. 3 rooms, 10 users
- 6 GB storage
- Basic task and project management
- Unlimited rooms and users
- 6 GB storage
- All Starter features
- 9 GB storage
- Recycle bin, email forwarding, PERT charts
- Office file previews and whiteboards
- Advanced security settings (IP whitelist, enforced 2FA)
- 12 GB storage
- SSO, YubiKey 2FA, API provisioning
- Unlimited organizations and custom modules
- Global export and compliance confirmations
All prices are net (exclusive VAT). Yearly billing saves 17%. Add-ons (AI, OFFICE) available at additional cost.
EU Trust Profile
6 of 9 criteria verified with evidence, last checked 2026-08-03. Every ✓ links to its source.
- Evidence →Data Processing Agreement (DPA)
The Data Processing Agreement (DPA) is required for GDPR-compliant use and can be concluded directly in the organization settings.
- Evidence →Trust center / security page
The security page serves as the trust center, detailing compliance and security measures.
- Evidence →EU data residencyFrankfurt (DE)
Data processing and storage occur exclusively in German data centers.
- Public sub-processor list
Stackfield uses subcontractors based in the EU but does not provide a public list of specific sub-processors.
- Evidence →ISO 27001Includes information security management system (ISMS)
Stackfield is certified according to ISO 27001, covering all areas and processes.
- SOC 2not verified
- Evidence →BSI C5BSI Cloud Computing Compliance Criteria Catalogue (C5)
Stackfield holds the BSI C5 attestation, confirming compliance with strict cloud security standards.
- TISAXnot verified
- Evidence →German-language support
Stackfield offers full product support in German, including a German-language website and help center.
Verified means: the claim was publicly documented at the linked source on the check date. The vendor's own information prevails.
Reviews
Recurring themes, synthesized from public reviews across portals.
What users value
- Clean, intuitive interface with minimal learning curve and straightforward onboarding
- End-to-end encryption and strict EU data residency (Germany-only servers, no non-EU access)
- All-in-one collaboration suite: tasks, chat, video calls, file sharing and whiteboards in one tool
- Fast performance and responsive user interface
- Perceived as cost-effective for the feature set
Where users see room to improve
- · Limited global adoption and brand recognition outside Europe, leading to resistance from users of established tools like Slack or Teams
- · Mobile app lacks functionality and user-friendliness compared to desktop experience
- · Customization options are restricted
- · Pricing structure may not clearly communicate value for all features (e.g., Kanban or list views)
Ratings across portals
Linked facts, we bring ratings from every portal together in one place.
Feature, pricing and integration details are based on web research (as of 2026-06-21), without guarantee, errors are possible. The vendor's website prevails.