Grammarly Premium is a paid upgrade that offers over 400 types of checks and features, checks for grammatical errors, provides vocabulary enhancement suggestions, detects plagiarism, and provides citation suggestions.
While the free version of Grammarly allows you to access some of the features we have to offer, Grammarly Premium is the ultimate tool to ensure that everything you write on the web is captivating, precise, and easy-to-read.
For more information about what's available, please visit this page: https://www.grammarly.com/plans.