tech from europe
vsMicrosoft Teams

Stackfield vs Microsoft Teams

Last updated October 2026

Stackfield is the German alternative to Microsoft Teams: end-to-end encrypted, hosted exclusively in Germany, and built for DSGVO-compliant collaboration without US data-access risks.

Our pick for a European buyer: Stackfield. We weight data residency, GDPR and EU jurisdiction above everything else — that is the constraint this directory exists to solve.

What it is
All-in-one German workspace for tasks, team chat and video calls, end-to-end encrypted
Unified communication and collaboration platform for chat, meetings, calling, and file sharing.
Headquarters
🇩🇪 DE
🇺🇸 US · 1975
EU data residency
Yes, for all customers
Available on some plansEU/German data residency is available for eligible tenants under Microsoft’s EU Data Boundary commitments and Advanced Data Residency options.
DSGVO / GDPR
Yes
Yes
Certifications
ISO 27001, ISO 27017, ISO 27018
ISO 27001, ISO 27018, SOC 1 Type II, SOC 2 Type II
Price from
€9/user/mo
$2.25/user/mo
Free plan
No
Yes
Open Source
No
No
Integrations
Dropbox, Box, Google Drive, Microsoft OneDrive / Office 365, Microsoft Teams +8
No

Where each one wins

Stackfield

Strengths

  • +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

Limitations

  • −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)

Microsoft Teams

Strengths

  • +Seamless integration with Microsoft 365 apps
  • +Reliable performance for large-scale deployments
  • +Comprehensive admin and compliance tools
  • +Strong collaboration features for remote teams

Limitations

  • −Steep learning curve for advanced features
  • −Complex licensing and pricing structure
  • −Occasional performance issues with large meetings
  • −Limited customization for non-Microsoft integrations

Data residency & compliance

Stackfield
Microsoft Teams
EU data residency
Yes, for all customers
Available on some plansEU/German data residency is available for eligible tenants under Microsoft’s EU Data Boundary commitments and Advanced Data Residency options.
Transfer mechanism
Not required — data stays in the EU
Standard Contractual Clauses
Sub-processors
not established
Certifications
ISO 27001, ISO 27017, ISO 27018
ISO 27001, ISO 27018, SOC 1 Type II, SOC 2 Type II

Pricing

Stackfield

  • Starter €9 per user/month (annual, min. 5 users) billed annuallyUp to 10 users · Max 3 rooms · 6 GB storage
  • Business €14 per user/month (annual, min. 5 users) billed annuallyUnlimited users and rooms · 6 GB storage
  • Premium €18 per user/month (annual, min. 5 users) billed annuallyVideo conferencing (up to 30 participants) · Whiteboards and Office file previews · Project portfolios and PERT charts
  • Enterprise €28 per user/month (annual, min. 5 users) billed annuallySSO (SAML/Active Directory) · YubiKey 2FA · REST API provisioning
  • Self-Hosted / On-Premise On request customFull control over data · Custom deployment

All prices exclude VAT. 17% discount for annual billing. 14-day free trial available.

Microsoft Teams

  • Microsoft Teams Free Free No time limitLimited meeting duration · Limited cloud storage · Basic chat and collaboration
  • Teams Essentials $4.00 Per user per monthUnlimited group meetings up to 30 hours · 10 GB cloud storage per user · Anytime phone and web support
  • Microsoft 365 Business Basic with Teams $6.00 Per user per monthWeb and mobile versions of Office apps · 1 TB cloud storage per user · Standard security and compliance features
  • Microsoft 365 Business Standard with Teams $12.50 Per user per monthDesktop versions of Office apps with premium features · 1 TB cloud storage per user · Advanced security and compliance features
  • Microsoft 365 Business Premium with Teams $22.00 Per user per monthAll Business Standard features · Advanced threat protection · Device management and security
  • Microsoft 365 F1 with Teams $2.25 Per user per monthFirstline Worker-focused features · Limited Office app access · Basic security and compliance
  • Microsoft 365 F3 with Teams $8.00 Per user per monthFirstline Worker-focused features · Full Office app access · Advanced security and compliance

Prices are per user per month and may vary by country and currency. Confirm local pricing and terms with Microsoft.

Features

Stackfield

Task & Project Management
List, Kanban, Gantt, and PERT chart views, Subtasks, custom fields, checklists, and task templates, Milestones, dependencies, automatic scheduling, and critical path tracking, Built-in time tracking and global reports
Team Communication & Meetings
Real-time group chat, 1:1 messages, and threaded discussions, Audio/video conferencing (up to 30 participants), screen sharing, and emoji reactions, Meeting room planning and external scheduling, Interactive polls
Knowledge & Document Management
Central file library with version history, Preview for Microsoft Office and OpenOffice files, Real-time whiteboards with drawing, shapes, and text, Rich text editor and document templates
Calendar & Work Organization
Personal 'My Week' and 'Everything' views, Shared team calendars and appointment scheduling, External calendar subscriptions via iCal/WebCal
Administration, Security & Compliance
Client-side end-to-end encryption, ISO 27001/27017/27018 and BSI C5 certified hosting in Germany, Granular permissions (Member, Admin, Guest, External), IP whitelisting, 2FA (Authenticator Apps, YubiKey), SSO (SAML/Active Directory)

Microsoft Teams

Chat and messaging
Individual, group, and channel conversations, Persistent chat history, Rich text formatting and file sharing, Messaging APIs for custom integrations
Meetings and collaboration
HD video and audio meetings, Screen sharing and whiteboard, Meeting recordings and transcripts, Team workspaces with file collaboration
Calling
Teams Phone with PSTN connectivity, Calling Plans, Operator Connect, or Direct Routing, Voicemail and call queues, Call analytics and reporting
Administration and compliance
Centralized admin center for user and policy management, Data loss prevention (DLP) and retention policies, eDiscovery and legal hold, Audit logs and compliance reports

Frequently asked questions

Where is my data stored with Stackfield vs. Microsoft Teams?

Stackfield stores all data on servers in Germany, ensuring EU-only data residency and full control over data sovereignty. Microsoft Teams uses global data centers, including EU locations, but relies on Standard Contractual Clauses and the EU-US Data Privacy Framework for cross-border data transfers, which may still expose data to US jurisdiction under the CLOUD Act.

How do the two tools differ in terms of DSGVO compliance?

Stackfield is designed for DSGVO compliance by default: end-to-end encryption (AES-256) ensures that even Stackfield cannot access user data, and all processing stays within the EU. Microsoft Teams offers DSGVO features like audit logs and data retention policies, but compliance depends on correct configuration and may be affected by US data access laws.

Which tool is more cost-effective for a small or medium-sized business?

Microsoft Teams is often more cost-effective for SMBs, especially if they already use Microsoft 365, as it’s included in many plans. Stackfield has no freemium tier and is priced higher, reflecting its focus on security and integrated project management, but may be worth the cost for teams prioritizing data sovereignty and encryption.

Can I migrate from Microsoft Teams to Stackfield easily?

Stackfield offers migration tools and support for importing data from Microsoft Teams, including chats, files, and tasks. However, due to differences in architecture (e.g., encryption models), some manual adjustments may be needed, particularly for complex workflows or third-party integrations that Teams relies on.

Who should choose Stackfield, and who is better off with Microsoft Teams?

Stackfield is best for European businesses that handle sensitive data and need strict control over data residency, encryption, and DSGVO compliance. Microsoft Teams suits larger organizations or those already using Microsoft 365, where cost efficiency, broad integrations, and scalability are priorities, provided they can manage compliance risks.