Proton VPN

Swiss privacy-first VPN with open-source apps and NetShield ad blocking

Langdock

GDPR-compliant enterprise AI platform for chat, assistants, and workflow automation

Proton VPN

Excellent

22/25

Langdock

Excellent

24/25

Score Breakdown

DimensionProton VPNLangdock

Data Residency

Where is your data stored and processed?

Proton VPN: Incorporated and headquartered in Switzerland, outside EU and Five/Nine/Fourteen Eyes. Proton-owned infrastructure in Switzerland and EU. Strongest possible jurisdictional privacy posture for a VPN provider.

Langdock: All data hosted in the EU by default; self-hosting option available for maximum control

5/5

Incorporated and headquartered in Switzerland, outside EU and Five/Nine/Fourteen Eyes. Proton-owned infrastructure in Switzerland and EU. Strongest possible jurisdictional privacy posture for a VPN provider.

5/5

All data hosted in the EU by default; self-hosting option available for maximum control

Legal Jurisdiction

Which laws govern the company and your data?

Proton VPN: Swiss jurisdiction under the Federal Act on Data Protection (FADP). Swiss courts have a strong track record of protecting user privacy from foreign data requests. Publishes annual Transparency Report.

Langdock: German GmbH under EU law; fully GDPR-native architecture with no CLOUD Act exposure

5/5

Swiss jurisdiction under the Federal Act on Data Protection (FADP). Swiss courts have a strong track record of protecting user privacy from foreign data requests. Publishes annual Transparency Report.

5/5

German GmbH under EU law; fully GDPR-native architecture with no CLOUD Act exposure

Data Retention & Training

Is your data used for model training?

Proton VPN: Strict no-logs policy: no IP addresses, connection timestamps, session duration, or traffic content retained. RAM-only servers in Secure Core configuration. Independently audited open-source client code.

Langdock: Customer data never used for AI training; full data deletion on request

5/5

Strict no-logs policy: no IP addresses, connection timestamps, session duration, or traffic content retained. RAM-only servers in Secure Core configuration. Independently audited open-source client code.

5/5

Customer data never used for AI training; full data deletion on request

Certifications

ISO 27001, SOC 2, Cyber Essentials, etc.

Proton VPN: ISO 27001 certified. All client applications open source and independently audited. Lacks SOC 2 Type II; however, open-source audit transparency partially compensates for formal certification gaps.

Langdock: ISO 27001 certified and SOC 2 Type II audited

3/5

ISO 27001 certified. All client applications open source and independently audited. Lacks SOC 2 Type II; however, open-source audit transparency partially compensates for formal certification gaps.

4/5

ISO 27001 certified and SOC 2 Type II audited

Regulatory Fit

Suitability for regulated industries and professional services

Proton VPN: Excellent fit for privacy-sensitive organisations and journalists. Swiss jurisdiction makes it particularly suitable for legal, financial, and human rights organisations requiring protection from government data requests.

Langdock: Ideal for EU-regulated organisations; EU hosting, German jurisdiction, GDPR-native, and strong certifications

4/5

Excellent fit for privacy-sensitive organisations and journalists. Swiss jurisdiction makes it particularly suitable for legal, financial, and human rights organisations requiring protection from government data requests.

5/5

Ideal for EU-regulated organisations; EU hosting, German jurisdiction, GDPR-native, and strong certifications

Total Score

22/25

24/25

Best For

Proton VPN

Best for EU-headquartered organisations needing maximum data sovereignty; regulated industries (ICO, BaFin); privacy-conscious teams who need strong data retention controls; organisations that need self-hosted or on-premise deployment.

Langdock

Best for EU-headquartered organisations needing maximum data sovereignty; privacy-conscious teams who need strong data retention controls; organisations that need self-hosted or on-premise deployment; teams on a tight budget.

Detailed Comparison

Langdock vs Proton VPN: Trust & Compliance Comparison

Langdock (Langdock GmbH, DE) scores 24/25 overall with a Gold (Excellent) trust badge. GDPR-compliant enterprise AI platform for chat, assistants, and workflow automation. Proton VPN (Proton AG, CH) scores 22/25 with a Gold (Excellent) trust badge. Swiss privacy-first VPN with open-source apps and NetShield ad blocking.

Dimension-by-Dimension Breakdown

#### Data Residency

Both score equally at 5/5.

●Langdock (5/5): All data hosted in the EU by default; self-hosting option available for maximum control

●Proton VPN (5/5): Incorporated and headquartered in Switzerland, outside EU and Five/Nine/Fourteen Eyes. Proton-owned infrastructure in Switzerland and EU. Strongest possible jurisdictional privacy posture for a VPN provider.

#### Legal Jurisdiction

Both score equally at 5/5.

●Langdock (5/5): German GmbH under EU law; fully GDPR-native architecture with no CLOUD Act exposure

●Proton VPN (5/5): Swiss jurisdiction under the Federal Act on Data Protection (FADP). Swiss courts have a strong track record of protecting user privacy from foreign data requests. Publishes annual Transparency Report.

#### Data Retention & Training

Both score equally at 5/5.

●Langdock (5/5): Customer data never used for AI training; full data deletion on request

●Proton VPN (5/5): Strict no-logs policy: no IP addresses, connection timestamps, session duration, or traffic content retained. RAM-only servers in Secure Core configuration. Independently audited open-source client code.

#### Certifications

Langdock leads with 4/5 vs 3/5.

●Langdock (4/5): ISO 27001 certified and SOC 2 Type II audited

●Proton VPN (3/5): ISO 27001 certified. All client applications open source and independently audited. Lacks SOC 2 Type II; however, open-source audit transparency partially compensates for formal certification gaps.

#### Regulatory Fit

Langdock leads with 5/5 vs 4/5.

●Langdock (5/5): Ideal for EU-regulated organisations; EU hosting, German jurisdiction, GDPR-native, and strong certifications

●Proton VPN (4/5): Excellent fit for privacy-sensitive organisations and journalists. Swiss jurisdiction makes it particularly suitable for legal, financial, and human rights organisations requiring protection from government data requests.

Certifications at a Glance

Certification	Langdock	Proton VPN
ISO 27001	Yes	Yes
SOC 2 Type II	Yes	No

Overall Verdict

Langdock has a clear trust advantage, scoring 24/25 compared to Proton VPN's 22/25. Langdock particularly excels in certifications, regulatory fit.

Frequently Asked Questions

Which is better for EU compliance, Proton VPN or Langdock?

Proton VPN has a TrustKit score of 22/25 while Langdock scores 24/25. Langdock currently rates higher across data residency, legal jurisdiction, data retention, certifications, and regulatory fit.

How do Proton VPN and Langdock compare on data residency?

Proton VPN scores 5/5 for data residency (Incorporated and headquartered in Switzerland, outside EU and Five/Nine/Fourteen Eyes. Proton-owned infrastructure in Switzerland and EU. Strongest possible jurisdictional privacy posture for a VPN provider.), while Langdock scores 5/5 (All data hosted in the EU by default; self-hosting option available for maximum control).

Are Proton VPN and Langdock GDPR compliant?

Both tools are assessed across five compliance dimensions. Proton VPN has a regulatory fit score of 4/5 and Langdock scores 5/5. Check the full comparison above for a detailed breakdown.

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