Free Grammar Checker
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Competitor Cost per Usage: $8
(I wish we were exaggerating)

PaperRater’s Cost per Usage: $0 is a FREE resource that utilizes Artificial Intelligence to improve writing. We believe that accessibility to quality educational tools is the fundamental component of our mission. We thank our advertisers, users, and socially-minded investors for allowing us to continue improving the quality and scope of our services.
We also offer a premium membership for those who are interested in an ad-free experience and those who would like to submit longer papers in a single submission.