Head-to-head · Collaboration
Microsoft Teams vs Stackfield
Which one to pick in 2026 — comparing 🇺🇸 Microsoft Teams with the European alternative 🇪🇺 Stackfield on the things that actually decide who can read your data.
🇺🇸 Microsoft Teamsvs🇪🇺 Stackfield
Verdict
Who has stronger privacy guarantees by law?
Stackfield — GDPR-native and outside the US CLOUD Act / FISA 702 reach.
Which one encrypts your data end-to-end by default?
Stackfield ships E2E encryption by default. Microsoft Teams does not.
Which one tracks you for ads?
Neither monetises through ad tracking.
Which one is open source?
Stackfield is not fully open source — check details.
Side-by-side
Microsoft Teams vs Stackfield — full comparison
Criteria
🇪🇺 Stackfield
🇺🇸 Microsoft Teams
Headquarters
Munich
Redmond, USA
Jurisdiction
DE
USA
Data location
DE
Global
GDPR-native
Yes
No
CLOUD Act / FISA exposed
No
Yes
Ad tracking
No
No
End-to-end encryption
Yes
No
Open source
No
No
Ownership
Stackfield GmbH
Microsoft Corp.
Founded
2012
2017
Make the switch
Try Stackfield instead of Microsoft Teams
Colaboração com E2E encryption
Other European alternatives to Microsoft Teams