“Think big. We’ll take care of the details.”
Grammarly is an AI-powered writing assistant for correction, style, tone, rewrites, and text generation.
According to the manufacturer, the tool works in more than 1 million apps and websites and also offers its own editor (“Docs”) with AI agents for drafting, revision, source/citation assistance, AI detection, and plagiarism checking. For businesses, there are team, analytics, security, and API features.
Grammarly
The AI writing partner for work
Origin: USA ⓘ Superhuman Platform Inc., 2261 Market Street STE 85232, San Francisco, CA 94114, United States.
Enterprise: For larger organizations; includes, among other things, Superhuman Go, unlimited members, dedicated support, Confidential Mode, granular roles/permissions, DLP, and unlimited generative AI prompts. Other Enterprise Sales / Custom: Contact Sales for larger organizations, security requirements, and custom administration.
Education: Grammarly offers separate Education or institutional plans for educational institutions; details are not part of the standard Free/Pro/Enterprise plans.
Superhuman Go / Suite context: Grammarly Enterprise is positioned through Superhuman Go; this expands Grammarly with context-aware AI agents in apps and workflows. Grammar, style, tone, AI writing, rewriting, proofreading, plagiarism check, AI detector, citations, Brand Voice, translation, email writing, spell check
Target audience
Grammarly is aimed at individual users, knowledge workers, freelancers, teams, and large organizations that communicate regularly in writing. Officially, the product addresses individuals, professionals, teams, enterprise customers, and educational institutions; on the business pages, marketing, sales, HR, and customer support are highlighted in particular as relevant use cases. In the education sector, Grammarly is also positioned for students, educators, and institutions.
Outstanding features
Grammarly is particularly strong in combining classic writing support with modern GenAI: correction, clarity, tone, sentence rewrites, plagiarism checking, and AI detection are directly integrated into the writing flow. In addition, there are Docs as its own AI-native editor, specialized Agents such as Citation Finder, AI Grader, and Reader Reactions, as well as enterprise features like Style Guide, Brand Tones, Analytics, SSO/SCIM, DLP, and BYOK. For organizations with integration needs, several APIs are also available or announced.
Main use cases
In practice, Grammarly is especially useful for emails, reports, presentation copy, marketing content, academic work, and multilingual communication. Official pages mention use in Gmail, Outlook, Google Docs, Word, Slack, Salesforce, PowerPoint, LinkedIn, Teams, Figma, Zendesk, and Jira; for Enterprise and Education, translation or inline translation and writing support in multiple languages are also emphasized. This makes Grammarly particularly strong wherever texts need to be created quickly, consistently, and professionally.
Usage & notes
Grammarly can be used via browser extension, desktop app, mobile app, and in the web editor/Docs. According to the privacy pages, the product only accesses text when it is actively being used; users can control where Grammarly runs, and sensitive fields are ignored or excluded on a best-effort basis. Important in practice: Check the Product Improvement and Training settings carefully, especially for individual or team plans purchased directly online. For particularly regulated environments, the DPA, subprocessors, US data transfers, and—if health data is involved—a possible BAA topic should also be reviewed.
| Who is it suitable for? | Assessment & rationale |
|---|---|
| Individuals | Very suitable – for grammar, spelling, tone, rewording, text ideas, and writing confidence in everyday life. Grammarly offers Free and Pro plans for individuals. (Grammarly) |
| Self-employed / freelancers | Very suitable – especially for proposals, client emails, LinkedIn posts, website copy, blog articles, and professional communication. It is a strong fit for Texts / Content, Writing & Editing, Marketing / Advertising, and Email / Communication. |
| SMEs / teams | Suitable – Grammarly Business offers team features such as Brand Tones and Style Guides, making texts more consistent and aligned with the brand. (Grammarly) |
| Large enterprises | Suitable to very suitable – according to Grammarly, Enterprise is a customizable solution with advanced security features; it makes sense for larger organizations when writing quality, corporate tone, and governance are important. (Grammarly) |
| Education / students / educators | Suitable – Grammarly for Education is aimed at educational institutions and combines Pro features with security and control functions for institutions. (Grammarly) |
| Privacy-conscious companies | Conditionally suitable – positive: According to Grammarly, the use of organizational content for training and product improvement is disabled for Enterprise/sales plans. Critical: For Free, Premium, and Single-User Pro, Product Improvement and Training is enabled by default, but can be disabled. (Grammarly Support) |
Hosting & Data
1) On-prem / local hosting
Meaning: The company operates the solution on its own hardware or within its own infrastructure. In the strictest sense, not only the application runs locally, but ideally the model as well.
2) Private cloud / data center
Meaning: The solution runs in a dedicated or more clearly separated cloud environment, often with a hosting provider or hyperscaler, but in a German data center or in a particularly controlled environment.
3) EU SaaS / managed
Meaning: The provider operates the solution itself as a service. The company uses the tool as a ready-made cloud service, ideally with EU data residency.
4) Hybrid
Meaning: One part of the processing remains internal / local / in a private cloud, while another part runs in an external cloud or EU SaaS.
5) AVV / DPA
Meaning: This is the data processing agreement or Data Processing Addendum. It governs that the provider processes personal data on behalf of the customer and is bound by the customer's instructions.
6) No training
Meaning: The provider does not use your prompts, uploads, attachments, chat histories, or outputs for training or improving the general model — ideally excluded by contract.
7) Open-source / transparency path
Meaning: There is a path toward greater technical transparency and sovereignty, for example through:
- open models
- documented components
- self-hostable parts
- traceable architecture
- export / switching options
| On-prem / local hosting | ❓ |
| Private cloud / data center | ❓ |
| EU SaaS / Managed | ❓ |
| Hybrid | ❓ |
| DPA / AVV | ✅ |
| No training on customer data | ⚠️ |
| Open source / transparency path | ❓ |
Grammarly is a cloud-based US SaaS tool with strong integration into browsers, desktop apps, email clients, Google Docs, Microsoft Word, Slack, Salesforce, Teams, Zendesk, and other applications. From a data protection perspective, the tool is well suited for general writing and communication tasks, but for personal, confidential, or regulated content it is only advisable with proper configuration, a DPA, training disabled, role/permission management, and internal usage policies.
Conclusion:
Suitable for productivity, communication, and text quality; limited for sensitive data. For EU companies, Enterprise or a Sales team account is preferable because training use is disabled by default there and additional controls such as DLP, Confidential Mode, SSO, roles/permissions, and BYOK are available. There is no verified public information available for on-premises, local hosting, or EU-only hosting.
| On-prem / local hosting | ❓ |
| Private cloud / data center | ❓ |
| EU SaaS / Managed | ❓ |
| Hybrid | ❓ |
| DPA / AVV | ✅ |
| No training on customer data | ⚠️ |
| Open source / transparency path | ❓ |
Grammarly is a cloud-based US SaaS tool with strong integration into browsers, desktop apps, email clients, Google Docs, Microsoft Word, Slack, Salesforce, Teams, Zendesk, and other applications. From a data protection perspective, the tool is well suited for general writing and communication tasks, but for personal, confidential, or regulated content it is only advisable with proper configuration, a DPA, training disabled, role/permission management, and internal usage policies.
Conclusion:
Suitable for productivity, communication, and text quality; limited for sensitive data. For EU companies, Enterprise or a Sales team account is preferable because training use is disabled by default there and additional controls such as DLP, Confidential Mode, SSO, roles/permissions, and BYOK are available. There is no verified public information available for on-premises, local hosting, or EU-only hosting.
Strengths & Weaknesses at a Glance
| Strengths | Weaknesses |
|---|---|
| • Very broad applicability across more than 1 million apps/websites. | • Public Enterprise pricing is missing. ⚠️ No verified pricing information available – as of 16/04/2026. |
| • Strong core functions for grammar, clarity, tone, and rewrites. | • Officially documented is US hosting; I could not verify a public EU data residency. |
| • Pro includes plagiarism checking and detection of AI-generated texts. | • Many subprocessors are based in the US, including AWS, Azure, OpenAI, and Anthropic. |
| • Good team/enterprise features: Style Guide, Brand Tones, Analytics, SAML/SCIM, DLP, BYOK. | • For individual accounts, “Product Improvement and Training” is enabled by default until users disable it; according to support, for multi-user Pro accounts purchased directly online, it is also initially enabled. |
| • Additional added value through Docs, Agents, and Enterprise APIs. | • Many advanced security/admin/API features are only available in the Enterprise tier. |
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GDPR-compliant use possible?
Grammarly can be usable for EU companies, but not without a data protection review. Positive aspects include the DPA, SCCs, DPF reference, encryption, admin controls, and enterprise security features. Critical aspects include US hosting, international transfers, and the training/product improvement settings depending on the account type.
Positive:
• Data Privacy Addendum available.
• Standard Contractual Clauses are provided for EU/UK transfers where required.
• Grammarly states GDPR/CCPA compliance, AES-256 encryption for data at rest, and SSL/TLS for data transmission.
• Enterprise/Sales Team accounts: Product Improvement & Training is disabled by default; according to Grammarly, organizational content is then not used for training or product improvement for other customers.
• According to Grammarly, third-party LLM providers are not allowed to use user content to train their models.
• Grammarly states that it does not sell or monetize content.
Negative:
• According to the DPA and Security page, Grammarly hosts server-side infrastructure in AWS data centers in the USA, specifically US East; there is no publicly documented EU-only hosting.
• Individual Free, Premium, and Single-User Pro accounts have Product Improvement & Training enabled by default; users can disable it.
• According to Grammarly, Multi-User Pro accounts purchased directly via the website also start with the training/product improvement setting enabled; admins can disable this.
• Grammarly may process data outside the country of residence and relies on appropriate safeguards, among other things, for transfers.
Server location: USA, AWS US East. Grammarly states that it uses Amazon Web Services in the United States, or AWS data centers in the US East region, for its server-side infrastructure.