Grammarly — privacy & data policy

Provider: Grammarly. PromptPrivacy score: 77/100. Last verified August 26, 2026.

What happens to your data?

Grammarly processes your text and usage patterns to provide real-time writing suggestions. Your content is never sold or monetized for advertising, and access by Grammarly staff is strictly restricted. You can opt out of having your data used to train AI models at any time.

Does it train on your data?

Grammarly analyzes text and usage data to improve products and train models by default, but provides an explicit opt-out switch in account settings.

Can you opt out?

Yes. Users can opt out of model training by disabling 'Product Improvement and Training' in account settings, and can opt out of tailored assistance via feature customization.

Data retention

Saved documents in the Grammarly Editor are retained until you delete the document or your Grammarly account. Opting out of personalized features triggers the deletion of data stored for those specific features.

Encryption & security

Grammarly maintains enterprise-grade security controls, undergoes regular independent penetration testing, and holds SOC 2 and ISO certifications. Specific encryption algorithms or in-transit/at-rest ciphers are not detailed in this text excerpt.

Is it safe for work?

Yes. Grammarly provides enterprise-grade compliance (SOC 2, ISO), strict access controls preventing unauthorized employee viewing, a commitment against selling user data, and the ability to opt out of model training.

Source policy: https://www.grammarly.com/trust