Grammarly

Compliant with caveats

grammarly.com

You are in control of whether your user content is used for training and improvement of our models.

Data Practices Disclosure

Trains on user data: Yes
Data retention: Personal data retained as long as necessary to provide products, complete transactions, comply with legal obligations, and resolve disputes. User content for troubleshooting and product improvement typically retained no longer than one year, then deleted or de-identified unless user retains it or legal obligations require longer retention.
GDPR mentioned: Yes
Reviewed by a human: Yes

Sources