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| What matters | 📖 Grammarly | ✍️ ProWritingAid |
|---|---|---|
| What it does | AI writing assistance for grammar, clarity, tone, and text generation across supported documents, apps, and browsers. | Writing feedback for grammar, style, rephrasing, and story revision, with reports and manuscript-focused tools. |
| Best for | Grammar, clarity, and writing feedback in everyday apps | ProWritingAid suits writers revising their own text rather than asking an assistant to replace the entire draft. |
| Pricing model | Free plan + paid | Free plan + paid |
| Free-plan limits | A Free plan is available. Pro and Enterprise add advanced writing and team features; a Pro trial is temporary. | The Free plan has recurring daily report, rephrase and other feature allowances, with shorter text limits. Paid plans expand editing and critique access. Some manuscript analyses use separate Story Credits; check the required analysis before buying a plan. |
| Platforms | Web | Web |
| Key capabilities | Grammar and spelling checks Clarity suggestions Tone guidance AI writing assistance Desktop and browser support | Grammar and style checks Line-editing reports Rephrase suggestions Story planning tools Plan-dependent chapter critique |
| Strengths | Review suggested corrections in context and accept only changes that match your voice and intended meaning. | Separate reports support focused editing decisions Document settings can shape suggestions Story tools extend beyond basic spelling correction |
| Limitations | A Free plan is available. Pro and Enterprise add advanced writing and team features; a Pro trial is temporary. | Free checks have daily and text-length limits Some manuscript analyses require separate credits |
| No signup required | Not verified | Not verified |
| No credit card required | Not verified | Not verified |
| Open source | Not verified | Not verified |
| Free trial | Not verified | Not verified |
| Access details reviewed | 2026-10-06 | 2026-10-15 |
| Official pricing / source | Check pricingAccess source | Check pricingAccess source |
| Next step | Explore Grammarly | Explore ProWritingAid |