Grammarly is your online writing assistant. Using artificial intelligence, it helps you compose bold, clear, mistake-free writing. It can work inside your email client, your productivity suites, and even your social media. Grammarly’s AI checks grammar, spelling, style, tone, and more. How it works: Type directly into the Grammarly editor, paste writing from another document or use the Grammarly add-on available for many sites and apps. Pricing and terms: It's a "freemium" tool, meaning there's a free plan and a paid premium plan. The free plan checks for grammar, spelling, punctuation, conciseness and tone detection. The premium plan costs $12.00 USD/month and includes everything in the free plan plus full-sentence rewrites, word choice, tone suggestions and citations