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Founded in Kyiv in 2009 by Max Lytvyn, Alex Shevchenko, and Dmytro Lider — the trio behind the earlier plagiarism-detection tool MyDropBox — Grammarly grew for roughly eight years on university customers and its own cash before hitting a million daily users in 2015 and going freemium. Its 2019 tone detector uses machine learning to predict how your words will land with a reader, while GrammarlyGO, launched in March 2023, drafts and rewrites text in your own voice. In 2025 the company acquired the Superhuman email client and adopted the Superhuman name for its parent brand. Grab a FatSaver coupon before you upgrade to Premium.

