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ProWritingAid sells writing software that checks grammar, style, and readability for writers and businesses.
ProWritingAid is a writing assistant. You paste in your draft, or write inside its editor, and it combs through the text looking for grammar mistakes, awkward phrasing, and passages that are hard to read. It then suggests fixes. Think of it as a copy editor sitting on your shoulder, one who never gets tired and never charges by the hour.
The people who pay for it are mostly writers and the businesses that employ them. Novelists use it to polish manuscripts before sending them to agents. Students use it on essays. Companies buy it for teams that produce reports, marketing copy, and emails, because sloppy writing costs them credibility. The software is sold as a subscription, so revenue comes from people renewing month after month or year after year rather than from one-off purchases. ProWritingAid competes in a crowded field. Grammarly is the best-known rival, with a huge free user base and aggressive marketing. There is also Microsoft's built-in Editor, which comes free inside Word and makes the basic grammar check a commodity. ProWritingAid's pitch is depth: it runs dozens of separate checks on a document, from repeated words to sentence-length variation to pacing, and it explains the reasoning behind each suggestion. That appeals to serious writers who want to learn, not just click "accept."
The company is small and privately held, which shapes how it behaves. It cannot outspend Grammarly on advertising, so it leans on word of mouth among writing communities and on integrations with tools writers already use. It also pushes an AI feature that rewrites sentences for you, a sign it is trying to stay relevant as cheap AI writing tools flood the market. The risk is obvious: if every word processor soon comes with a smart writing assistant baked in, a standalone subscription gets harder to justify.
Saved answer · last researched 15 Nov 2026