Writer

Full-stack enterprise AI platform for content and workflows

Grammarly

AI writing assistant for grammar, style, clarity, and generative content creation

Writer

Strong

17/25

Grammarly

Strong

17/25

Score Breakdown

DimensionWriterGrammarly

Data Residency

Where is your data stored and processed?

Writer: Primary hosting in the US with EU data residency options available for Enterprise customers. Standard cloud infrastructure.

Grammarly: Data hosted exclusively in US AWS East; no EU or regional residency option

3/5

Primary hosting in the US with EU data residency options available for Enterprise customers. Standard cloud infrastructure.

2/5

Data hosted exclusively in US AWS East; no EU or regional residency option

Legal Jurisdiction

Which laws govern the company and your data?

Writer: US-incorporated (Delaware) entity. Subject to US law including CLOUD Act. Offers contractual protections and DPAs for EU customers.

Grammarly: US Delaware corporation subject to CLOUD Act; GDPR compliance via SCCs and DPA

3/5

US-incorporated (Delaware) entity. Subject to US law including CLOUD Act. Offers contractual protections and DPAs for EU customers.

2/5

US Delaware corporation subject to CLOUD Act; GDPR compliance via SCCs and DPA

Data Retention & Training

Is your data used for model training?

Writer: Clear data retention policies. Customer data is not used for model training. Enterprise agreements provide additional data handling controls.

Grammarly: User data not sold; limited processing for product improvement with user controls

4/5

Clear data retention policies. Customer data is not used for model training. Enterprise agreements provide additional data handling controls.

4/5

User data not sold; limited processing for product improvement with user controls

Certifications

ISO 27001, SOC 2, Cyber Essentials, etc.

Writer: SOC 2 Type II certified with HIPAA compliance available. Strong enterprise security posture with regular third-party audits.

Grammarly: Extensive certification: SOC 2 Type II, ISO 27001/18/701, ISO 42001

4/5

SOC 2 Type II certified with HIPAA compliance available. Strong enterprise security posture with regular third-party audits.

5/5

Extensive certification: SOC 2 Type II, ISO 27001/18/701, ISO 42001

Regulatory Fit

Suitability for regulated industries and professional services

Writer: Good fit for US-regulated industries including healthcare (HIPAA). EU organizations should evaluate US jurisdiction implications. Proprietary models provide better data control than third-party model dependencies.

Grammarly: Strong enterprise compliance posture; US-only hosting limits suitability for EU data residency mandates

3/5

Good fit for US-regulated industries including healthcare (HIPAA). EU organizations should evaluate US jurisdiction implications. Proprietary models provide better data control than third-party model dependencies.

4/5

Strong enterprise compliance posture; US-only hosting limits suitability for EU data residency mandates

Total Score

17/25

Best For

Writer

Best for organisations requiring broad certification coverage (SOC 2 Type II, ISO 27001, ISO 27018); privacy-conscious teams who need strong data retention controls; teams on a tight budget.

Grammarly

Best for privacy-conscious teams who need strong data retention controls.

Detailed Comparison

Grammarly vs Writer: Trust & Compliance Comparison

Grammarly (Grammarly, Inc., US) scores 17/25 overall with a Silver (Strong) trust badge. AI writing assistant for grammar, style, clarity, and generative content creation. Writer (Writer, US) scores 17/25 with a Silver (Strong) trust badge. Full-stack enterprise AI platform for content and workflows.

Dimension-by-Dimension Breakdown

#### Data Residency

Writer leads with 3/5 vs 2/5.

●Grammarly (2/5): Data hosted exclusively in US AWS East; no EU or regional residency option

●Writer (3/5): Primary hosting in the US with EU data residency options available for Enterprise customers. Standard cloud infrastructure.

#### Legal Jurisdiction

Writer leads with 3/5 vs 2/5.

●Grammarly (2/5): US Delaware corporation subject to CLOUD Act; GDPR compliance via SCCs and DPA

●Writer (3/5): US-incorporated (Delaware) entity. Subject to US law including CLOUD Act. Offers contractual protections and DPAs for EU customers.

#### Data Retention & Training

Both score equally at 4/5.

●Grammarly (4/5): User data not sold; limited processing for product improvement with user controls

●Writer (4/5): Clear data retention policies. Customer data is not used for model training. Enterprise agreements provide additional data handling controls.

#### Certifications

Grammarly leads with 5/5 vs 4/5.

●Grammarly (5/5): Extensive certification: SOC 2 Type II, ISO 27001/18/701, ISO 42001

●Writer (4/5): SOC 2 Type II certified with HIPAA compliance available. Strong enterprise security posture with regular third-party audits.

#### Regulatory Fit

Grammarly leads with 4/5 vs 3/5.

●Grammarly (4/5): Strong enterprise compliance posture; US-only hosting limits suitability for EU data residency mandates

●Writer (3/5): Good fit for US-regulated industries including healthcare (HIPAA). EU organizations should evaluate US jurisdiction implications. Proprietary models provide better data control than third-party model dependencies.

Certifications at a Glance

Certification	Grammarly	Writer
HIPAA	No	Yes
ISO 27001	Yes	No
ISO 27018	Yes	No
ISO 27701	Yes	No
ISO 42001	Yes	No
SOC 2 Type II	Yes	Yes

Overall Verdict

Grammarly and Writer are closely matched on trust and compliance, with scores of 17/25 and 17/25 respectively. The right choice depends on your specific regulatory requirements and existing technology stack.

Frequently Asked Questions

Which is better for EU compliance, Writer or Grammarly?

Writer has a TrustKit score of 17/25 while Grammarly scores 17/25. Both tools are currently rated equally across data residency, legal jurisdiction, data retention, certifications, and regulatory fit.

How do Writer and Grammarly compare on data residency?

Writer scores 3/5 for data residency (Primary hosting in the US with EU data residency options available for Enterprise customers. Standard cloud infrastructure.), while Grammarly scores 2/5 (Data hosted exclusively in US AWS East; no EU or regional residency option).

Are Writer and Grammarly GDPR compliant?

Both tools are assessed across five compliance dimensions. Writer has a regulatory fit score of 3/5 and Grammarly scores 4/5. Check the full comparison above for a detailed breakdown.

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