Grammarly

Uses your writing to train AI models without explicit opt-in

Your emails, documents, and writing style could be used to improve AI systems by default, unless you actively find and toggle a setting in account options.

Shares unique identifiers with advertisers to target you

The company converts your email address into unique IDs that advertisers use to show you targeted ads on other websites, which may feel like hidden tracking.

Transfers your data to US servers with limited EU protections

Even though the company relies on EU-US Data Privacy Framework agreements, your personal data leaves Europe for the US where privacy laws are weaker and government access is easier.