Grammarly

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

Unbabel

Portuguese AI translation platform combining neural MT with human quality assurance

Grammarly

Strong

17/25

Unbabel

Excellent

22/25

Score Breakdown

DimensionGrammarlyUnbabel

Data Residency

Where is your data stored and processed?

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

Unbabel: EU-based infrastructure operated by a Portuguese company; limited human editor data exposure by design

2/5

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

4/5

EU-based infrastructure operated by a Portuguese company; limited human editor data exposure by design

Legal Jurisdiction

Which laws govern the company and your data?

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

Unbabel: Portuguese Lda, EU-incorporated, no US parent, subject to Portuguese and EU law

2/5

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

5/5

Portuguese Lda, EU-incorporated, no US parent, subject to Portuguese and EU law

Data Retention & Training

Is your data used for model training?

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

Unbabel: No training on customer data; clear data segmentation in human editing workflow; DPA available

4/5

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

4/5

No training on customer data; clear data segmentation in human editing workflow; DPA available

Certifications

ISO 27001, SOC 2, Cyber Essentials, etc.

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

Unbabel: ISO 27001 and SOC 2 Type II certified — strong for a European scale-up

5/5

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

4/5

ISO 27001 and SOC 2 Type II certified — strong for a European scale-up

Regulatory Fit

Suitability for regulated industries and professional services

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

Unbabel: Excellent EU fit; ISO 27001 + SOC 2 + EU jurisdiction makes it suitable for regulated industries

4/5

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

5/5

Excellent EU fit; ISO 27001 + SOC 2 + EU jurisdiction makes it suitable for regulated industries

Total Score

17/25

22/25

Best For

Grammarly

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.

Unbabel

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

Detailed Comparison

Grammarly vs Unbabel: 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. Unbabel (Unbabel, PT) scores 22/25 with a Gold (Excellent) trust badge. Portuguese AI translation platform combining neural MT with human quality assurance.

Dimension-by-Dimension Breakdown

#### Data Residency

Unbabel leads with 4/5 vs 2/5.

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

●Unbabel (4/5): EU-based infrastructure operated by a Portuguese company; limited human editor data exposure by design

#### Legal Jurisdiction

Unbabel leads with 5/5 vs 2/5.

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

●Unbabel (5/5): Portuguese Lda, EU-incorporated, no US parent, subject to Portuguese and EU law

#### Data Retention & Training

Both score equally at 4/5.

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

●Unbabel (4/5): No training on customer data; clear data segmentation in human editing workflow; DPA available

#### Certifications

Grammarly leads with 5/5 vs 4/5.

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

●Unbabel (4/5): ISO 27001 and SOC 2 Type II certified — strong for a European scale-up

#### Regulatory Fit

Unbabel leads with 5/5 vs 4/5.

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

●Unbabel (5/5): Excellent EU fit; ISO 27001 + SOC 2 + EU jurisdiction makes it suitable for regulated industries

Certifications at a Glance

Certification	Grammarly	Unbabel
GDPR	No	Yes
ISO 27001	Yes	Yes
ISO 27018	Yes	No
ISO 27701	Yes	No
ISO 42001	Yes	No
SOC 2 Type II	Yes	Yes

Overall Verdict

Unbabel has a clear trust advantage, scoring 22/25 compared to Grammarly's 17/25. Unbabel particularly excels in data residency, legal jurisdiction, regulatory fit.

Frequently Asked Questions

Which is better for EU compliance, Grammarly or Unbabel?

Grammarly has a TrustKit score of 17/25 while Unbabel scores 22/25. Unbabel currently rates higher across data residency, legal jurisdiction, data retention, certifications, and regulatory fit.

How do Grammarly and Unbabel compare on data residency?

Grammarly scores 2/5 for data residency (Data hosted exclusively in US AWS East; no EU or regional residency option), while Unbabel scores 4/5 (EU-based infrastructure operated by a Portuguese company; limited human editor data exposure by design).

Are Grammarly and Unbabel GDPR compliant?

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

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