Grammarly is strongest where it defines business handling, customer ownership, and vendor use more tightly than many AI writing tools.
Grammarly is a writing assistant, reviewed for AI writing privacy, content use, sharing, tracking, retention, and controls.
70
Mixed
70
Mixed
Grammarly is clearer on service sharing than on tracking, so the main risk is where writing data gets exposed outside your editor.
Grammarly is strongest where it defines business handling, customer ownership, and vendor use more tightly than many AI writing tools.
The weakest area is the broader tracking and product surface, especially once Grammarly runs across many sites, apps, and browser sessions.
55
Weak
Personal Grammarly users need to review the Product Improvement and Training control for AI-training use.
Enterprise and education accounts have stronger managed-account protections than ordinary personal use.
80
Good
Grammarly frames limited recipients and restricted data access as core privacy commitments.
The service says user content is not used for advertising purposes.
Least-privilege access controls and audited permissions narrow internal exposure to user data.
Generative AI prompt context can still be shared with a small number of vetted providers.
Team admins, integrations, and deployment choices can still widen who sees account activity or writing context.
60
Mixed
Browser extensions and app integrations can observe text across many writing surfaces while the service is active.
Account, usage, and device data are still collected to operate and secure the service.
Grammarly says user content is not provided for advertising purposes.
Sensitive fields are blocked on a best-effort basis and the product is not built as a public ad platform.
Teams can control where Grammarly is deployed and which users can access it.
70
Mixed
The reviewed FAQ does not provide one short universal deletion window for every text and usage data type.
Enterprise or team workflows can preserve account context and writing history longer than an individual user may expect.
Users can delete personal data by deleting their account.
Personal data reports provide visibility into what Grammarly processes about a user.
Team administration tools let organizations add, remove, or transfer accounts.
The FAQ documents structured privacy rights and hosting practices rather than leaving retention fully opaque.
75
Good
Users can request a personal data report and delete their account data.
Users can opt out of content use for product improvement and training.
Team admins can manage deployment, roles, permissions, and multi-factor access for business use.
Users can control where Grammarly is enabled across sites and apps.
Users still need to actively disable Grammarly on sensitive sites or workflows.
Generative features and team deployments can make the control surface harder to reason about than a simple browser extension.
Latest Finding
Open: support.grammarly.com1. AI Use
Personal Grammarly users need to review the Product Improvement and Training control for AI-training use.
2. Controls
Enterprise and education accounts have stronger managed-account protections than ordinary personal use.
Founded
Jan 2009
Founder
Alex Shevchenko, Max Lytvyn, and Dmytro Lider
Parent Company
Grammarly
Lifecycle
Active
Category
Productivity & Collaboration
CEO
Unknown
Security Team
In house
Date Added
06-10-2026