Tandem Health

AI medical scribe and coding assistant built to EU medical-device standards

Nuance DAX

Microsoft's AI ambient clinical documentation system for healthcare providers

Tandem Health

Excellent

25/25

Nuance DAX

Strong

17/25

Score Breakdown

DimensionTandem HealthNuance DAX

Data Residency

Where is your data stored and processed?

Tandem Health: Patient data is processed and stored exclusively in European data centres, and audio is deleted immediately after transcription with no storage — an explicit EU-only posture.

Nuance DAX: Azure EU data centre regions available for European healthcare deployments. Microsoft offers EU Data Boundary commitments. US parent company means CLOUD Act applies despite EU data residency. HDS certification available for French healthcare requirements.

5/5

Patient data is processed and stored exclusively in European data centres, and audio is deleted immediately after transcription with no storage — an explicit EU-only posture.

3/5

Azure EU data centre regions available for European healthcare deployments. Microsoft offers EU Data Boundary commitments. US parent company means CLOUD Act applies despite EU data residency. HDS certification available for French healthcare requirements.

Legal Jurisdiction

Which laws govern the company and your data?

Tandem Health: Incorporated as Tandem Health AB in Sweden with no US parent, placing it fully within EU/EEA jurisdiction.

Nuance DAX: Nuance is a US company under Microsoft (Delaware), subject to CLOUD Act. Microsoft participates in EU-US DPF and has CLOUD Act mitigation commitments for EU government customers. Healthcare data requires careful jurisdiction analysis before EU deployment.

5/5

Incorporated as Tandem Health AB in Sweden with no US parent, placing it fully within EU/EEA jurisdiction.

2/5

Nuance is a US company under Microsoft (Delaware), subject to CLOUD Act. Microsoft participates in EU-US DPF and has CLOUD Act mitigation commitments for EU government customers. Healthcare data requires careful jurisdiction analysis before EU deployment.

Data Retention & Training

Is your data used for model training?

Tandem Health: States it does not train AI models on patient or personal data, deletes audio immediately after transcription, offers enterprise data agreements, and operates under an ISO 13485 medical-device QMS.

Nuance DAX: Clinical conversations and notes not used for shared model training under HIPAA BAA. Microsoft enterprise DPA provides GDPR-compliant data retention controls. Patient data handling governed by healthcare-specific contractual protections.

5/5

States it does not train AI models on patient or personal data, deletes audio immediately after transcription, offers enterprise data agreements, and operates under an ISO 13485 medical-device QMS.

4/5

Clinical conversations and notes not used for shared model training under HIPAA BAA. Microsoft enterprise DPA provides GDPR-compliant data retention controls. Patient data handling governed by healthcare-specific contractual protections.

Certifications

ISO 27001, SOC 2, Cyber Essentials, etc.

Tandem Health: Exceptional stack: ISO 27001:2022, ISO 13485:2016, ISO 42001:2023, ISO 14001, NEN 7510, plus CE/MDR Class IIa and UKCA medical-device marks, NHS DSPT and Cyber Essentials Plus. No SOC 2 published, but sector-specific medical-device certification more than compensates.

Nuance DAX: Comprehensive certification portfolio via Microsoft: ISO 27001, ISO 27017, ISO 27018, SOC 2 Type II, HIPAA BAA, HDS (French healthcare hosting). Among the most certified healthcare AI platforms available.

5/5

Exceptional stack: ISO 27001:2022, ISO 13485:2016, ISO 42001:2023, ISO 14001, NEN 7510, plus CE/MDR Class IIa and UKCA medical-device marks, NHS DSPT and Cyber Essentials Plus. No SOC 2 published, but sector-specific medical-device certification more than compensates.

5/5

Comprehensive certification portfolio via Microsoft: ISO 27001, ISO 27017, ISO 27018, SOC 2 Type II, HIPAA BAA, HDS (French healthcare hosting). Among the most certified healthcare AI platforms available.

Regulatory Fit

Suitability for regulated industries and professional services

Tandem Health: Purpose-built and CE/MDR-certified as a medical device for EU and UK clinical use, with named applicability to healthcare regulators (EMA, MHRA) and NHS frameworks.

Nuance DAX: Strong certification posture makes DAX suitable for many European healthcare organisations with appropriate GDPR controls. US jurisdiction and CLOUD Act require careful DPA negotiation for EU patient data. Confirm EU Data Boundary commitments and current CLOUD Act mitigation for your specific use case.

5/5

Purpose-built and CE/MDR-certified as a medical device for EU and UK clinical use, with named applicability to healthcare regulators (EMA, MHRA) and NHS frameworks.

3/5

Strong certification posture makes DAX suitable for many European healthcare organisations with appropriate GDPR controls. US jurisdiction and CLOUD Act require careful DPA negotiation for EU patient data. Confirm EU Data Boundary commitments and current CLOUD Act mitigation for your specific use case.

Total Score

25/25

17/25

Best For

Tandem Health

Best for organisations requiring broad certification coverage (ISO 27001, ISO 27017, ISO 27018); privacy-conscious teams who need strong data retention controls.

Nuance DAX

Best for EU-headquartered organisations needing maximum data sovereignty; organisations requiring broad certification coverage (CE mark (EU MDR), MDR Class IIa, UKCA); regulated industries (EMA, MHRA); privacy-conscious teams who need strong data retention controls; teams on a tight budget.

Detailed Comparison

Nuance DAX vs Tandem Health: Trust & Compliance Comparison

Nuance DAX (Nuance (Microsoft), US) scores 17/25 overall with a Silver (Strong) trust badge. Microsoft's AI ambient clinical documentation system for healthcare providers. Tandem Health (Tandem Health, SE) scores 25/25 with a Gold (Excellent) trust badge. AI medical scribe and coding assistant built to EU medical-device standards.

Dimension-by-Dimension Breakdown

#### Data Residency

Tandem Health leads with 5/5 vs 3/5.

●Nuance DAX (3/5): Azure EU data centre regions available for European healthcare deployments. Microsoft offers EU Data Boundary commitments. US parent company means CLOUD Act applies despite EU data residency. HDS certification available for French healthcare requirements.

●Tandem Health (5/5): Patient data is processed and stored exclusively in European data centres, and audio is deleted immediately after transcription with no storage — an explicit EU-only posture.

#### Legal Jurisdiction

Tandem Health leads with 5/5 vs 2/5.

●Nuance DAX (2/5): Nuance is a US company under Microsoft (Delaware), subject to CLOUD Act. Microsoft participates in EU-US DPF and has CLOUD Act mitigation commitments for EU government customers. Healthcare data requires careful jurisdiction analysis before EU deployment.

●Tandem Health (5/5): Incorporated as Tandem Health AB in Sweden with no US parent, placing it fully within EU/EEA jurisdiction.

#### Data Retention & Training

Tandem Health leads with 5/5 vs 4/5.

●Nuance DAX (4/5): Clinical conversations and notes not used for shared model training under HIPAA BAA. Microsoft enterprise DPA provides GDPR-compliant data retention controls. Patient data handling governed by healthcare-specific contractual protections.

●Tandem Health (5/5): States it does not train AI models on patient or personal data, deletes audio immediately after transcription, offers enterprise data agreements, and operates under an ISO 13485 medical-device QMS.

#### Certifications

Both score equally at 5/5.

●Nuance DAX (5/5): Comprehensive certification portfolio via Microsoft: ISO 27001, ISO 27017, ISO 27018, SOC 2 Type II, HIPAA BAA, HDS (French healthcare hosting). Among the most certified healthcare AI platforms available.

●Tandem Health (5/5): Exceptional stack: ISO 27001:2022, ISO 13485:2016, ISO 42001:2023, ISO 14001, NEN 7510, plus CE/MDR Class IIa and UKCA medical-device marks, NHS DSPT and Cyber Essentials Plus. No SOC 2 published, but sector-specific medical-device certification more than compensates.

#### Regulatory Fit

Tandem Health leads with 5/5 vs 3/5.

●Nuance DAX (3/5): Strong certification posture makes DAX suitable for many European healthcare organisations with appropriate GDPR controls. US jurisdiction and CLOUD Act require careful DPA negotiation for EU patient data. Confirm EU Data Boundary commitments and current CLOUD Act mitigation for your specific use case.

●Tandem Health (5/5): Purpose-built and CE/MDR-certified as a medical device for EU and UK clinical use, with named applicability to healthcare regulators (EMA, MHRA) and NHS frameworks.

Certifications at a Glance

Certification	Nuance DAX	Tandem Health
CE mark (EU MDR)	No	Yes
Cyber Essentials Plus	No	Yes
GDPR	No	Yes
HDS	Yes	No
HIPAA	Yes	No
ISO 13485:2016	No	Yes
ISO 14001:2015	No	Yes
ISO 27001	Yes	No
ISO 27017	Yes	No
ISO 27018	Yes	No
ISO 42001:2023	No	Yes
ISO/IEC 27001:2022	No	Yes
MDR Class IIa	No	Yes
NEN 7510	No	Yes
NHS DSPT	No	Yes
SOC 2 Type II	Yes	No
UKCA	No	Yes

Overall Verdict

Tandem Health has a clear trust advantage, scoring 25/25 compared to Nuance DAX's 17/25. Tandem Health particularly excels in data residency, legal jurisdiction, data retention & training, regulatory fit.

Frequently Asked Questions

Which is better for EU compliance, Tandem Health or Nuance DAX?

Tandem Health has a TrustKit score of 25/25 while Nuance DAX scores 17/25. Tandem Health currently rates higher across data residency, legal jurisdiction, data retention, certifications, and regulatory fit.

How do Tandem Health and Nuance DAX compare on data residency?

Tandem Health scores 5/5 for data residency (Patient data is processed and stored exclusively in European data centres, and audio is deleted immediately after transcription with no storage — an explicit EU-only posture.), while Nuance DAX scores 3/5 (Azure EU data centre regions available for European healthcare deployments. Microsoft offers EU Data Boundary commitments. US parent company means CLOUD Act applies despite EU data residency. HDS certification available for French healthcare requirements.).

Are Tandem Health and Nuance DAX GDPR compliant?

Both tools are assessed across five compliance dimensions. Tandem Health has a regulatory fit score of 5/5 and Nuance DAX scores 3/5. Check the full comparison above for a detailed breakdown.

Explore Each Tool