One of the most useful and essential digital writing tools, Grammarly is an AI-driven application that helps users check and proofread their works to avoid typos and grammatical errors. It also offers insights into readability and sentence length. Founded in 2008, Grammarly has now grown to 6.9 million daily active users. Grammarly offers a Premium Plan that can be availed in three ways: monthly, quarterly, and annual. The Premium subscription starts at $29.95 per month, but you can certainly get Grammarly discount through their best value plans. Read on to learn more about getting the best deals.