Lexis+ AI

Hallucination-free AI legal research with authoritative LexisNexis sources

Tandem Health

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

Lexis+ AI

Strong

21/25

Tandem Health

Excellent

25/25

Score Breakdown

DimensionLexis+ AITandem Health

Data Residency

Where is your data stored and processed?

Lexis+ AI: Data hosted across US, EU, and UK data centres. Strong data residency options for law firms in major common law and civil law jurisdictions. UK GDPR compliance post-Brexit.

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.

4/5

Data hosted across US, EU, and UK data centres. Strong data residency options for law firms in major common law and civil law jurisdictions. UK GDPR compliance post-Brexit.

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

Which laws govern the company and your data?

Lexis+ AI: Parent company RELX PLC is UK/EU incorporated and regulated. LexisNexis US entity is incorporated in Delaware but operates under RELX's broader European governance framework, providing strong data protection oversight.

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

4/5

Parent company RELX PLC is UK/EU incorporated and regulated. LexisNexis US entity is incorporated in Delaware but operates under RELX's broader European governance framework, providing strong data protection oversight.

5/5

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

Data Retention & Training

Is your data used for model training?

Lexis+ AI: Clear data retention policies aligned with legal professional requirements. Research queries and documents are not retained for AI training. Supports data processing agreements for enterprise law firms.

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.

4/5

Clear data retention policies aligned with legal professional requirements. Research queries and documents are not retained for AI training. Supports data processing agreements for enterprise law firms.

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

ISO 27001, SOC 2, Cyber Essentials, etc.

Lexis+ AI: Holds SOC 2 Type II, ISO 27001, and ISO 27701 certifications. Strong certification portfolio appropriate for a platform handling confidential legal information.

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.

4/5

Holds SOC 2 Type II, ISO 27001, and ISO 27701 certifications. Strong certification portfolio appropriate for a platform handling confidential legal information.

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

Suitability for regulated industries and professional services

Lexis+ AI: Excellent regulatory fit for law firms and legal departments. Compliance with bar association professional responsibility rules, GDPR, UK GDPR, and CCPA. Trusted by government agencies and Am Law 100 firms.

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.

5/5

Excellent regulatory fit for law firms and legal departments. Compliance with bar association professional responsibility rules, GDPR, UK GDPR, and CCPA. Trusted by government agencies and Am Law 100 firms.

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.

Total Score

21/25

25/25

Best For

Lexis+ AI

Best for EU-headquartered organisations needing maximum data sovereignty; organisations requiring broad certification coverage (SOC 2 Type II, ISO 27001, ISO 27701); regulated industries (FCA, SRA); privacy-conscious teams who need strong data retention controls.

Tandem Health

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

Lexis+ AI vs Tandem Health: Trust & Compliance Comparison

Lexis+ AI (LexisNexis, GB) scores 21/25 overall with a Silver (Strong) trust badge. Hallucination-free AI legal research with authoritative LexisNexis sources. 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 4/5.

●Lexis+ AI (4/5): Data hosted across US, EU, and UK data centres. Strong data residency options for law firms in major common law and civil law jurisdictions. UK GDPR compliance post-Brexit.

●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 4/5.

●Lexis+ AI (4/5): Parent company RELX PLC is UK/EU incorporated and regulated. LexisNexis US entity is incorporated in Delaware but operates under RELX's broader European governance framework, providing strong data protection oversight.

●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.

●Lexis+ AI (4/5): Clear data retention policies aligned with legal professional requirements. Research queries and documents are not retained for AI training. Supports data processing agreements for enterprise law firms.

●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

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

●Lexis+ AI (4/5): Holds SOC 2 Type II, ISO 27001, and ISO 27701 certifications. Strong certification portfolio appropriate for a platform handling confidential legal information.

●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

Both score equally at 5/5.

●Lexis+ AI (5/5): Excellent regulatory fit for law firms and legal departments. Compliance with bar association professional responsibility rules, GDPR, UK GDPR, and CCPA. Trusted by government agencies and Am Law 100 firms.

●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	Lexis+ AI	Tandem Health
CE mark (EU MDR)	No	Yes
Cyber Essentials Plus	No	Yes
GDPR	No	Yes
ISO 13485:2016	No	Yes
ISO 14001:2015	No	Yes
ISO 27001	Yes	No
ISO 27701	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 Lexis+ AI's 21/25. Tandem Health particularly excels in data residency, legal jurisdiction, data retention & training, certifications.

Frequently Asked Questions

Which is better for EU compliance, Lexis+ AI or Tandem Health?

Lexis+ AI has a TrustKit score of 21/25 while Tandem Health scores 25/25. Tandem Health currently rates higher across data residency, legal jurisdiction, data retention, certifications, and regulatory fit.

How do Lexis+ AI and Tandem Health compare on data residency?

Lexis+ AI scores 4/5 for data residency (Data hosted across US, EU, and UK data centres. Strong data residency options for law firms in major common law and civil law jurisdictions. UK GDPR compliance post-Brexit.), while Tandem Health scores 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.).

Are Lexis+ AI and Tandem Health GDPR compliant?

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

Explore Each Tool