In addition to the online text editor, Grammarly also offers a free browser extension for Chrome, Safari, and Firefox that corrects over 150 types of errors. Grammarly for Chrome, Grammarly for Safari, and Grammarly for Firefox bring Grammarly’s powerful algorithms straight to you wherever you are writing online, including Gmail, Facebook, Twitter, LinkedIn, and Tumblr. You can correct mistakes in your text with a single click.
For users who want to supercharge their writing performance and leave no errors unchecked, Grammarly Premium is a paid upgrade that checks for over 250 types of grammatical errors, provides vocabulary enhancement suggestions, detects plagiarism, and provides citation suggestions. Grammarly Premium also includes Grammarly for Microsoft® Office, which allows you to use the world’s most accurate grammar and spelling checker without leaving your Microsoft® Word™ document or Outlook® email.
Grammarly Premium is available through three different subscription plans:
$19.98 per month
$11.66 per month