ProWritingAid vs Sudowrite
ProWritingAid uniquely has 3 features · Sudowrite uniquely has 1 feature.
| ProWritingAid | Sudowrite | |
|---|---|---|
| Company | ||
| Founded | 2012 | 2020 |
| HQ | London, United Kingdom | San Francisco, USA |
| AI model | Proprietary | Proprietary (Muse), Claude by Anthropic, OpenAI models, open-source models |
| User base | 4 million+ | — |
| Platforms | Web, Chrome Extension, Firefox Extension, Edge Extension, Google Docs, Microsoft Word, Desktop Editor, Scrivener | Web |
| Languages | English only | 30+ languages |
| Pricing | ||
| Free plan | Yes — 500 word limit, 2 report runs/day, 3 Sparks/day, 10 Rephrases/day | No |
| Free trial | Yes — Free plan available with limited features; 3-day money-back on paid plans | Yes — free trial, no credit card required |
| Starting price | $10.00/mo (Premium, billed yearly at $120/yr) | $10/mo (Hobby & Student) |
| Enterprise | — | Custom — contact required |
| Refund policy | 3-day money-back guarantee on yearly and lifetime plans; no refunds on monthly plans | — |
| All plans | Premium$30/moPremium Pro$36/moPremium Lifetime$399 one-timePremium Pro Lifetime$699 one-time | Hobby & Student$19/moProfessional$29/moMax$59/moEnterpriseCustom |
| Positioning | ||
| Best for | Novelists, fiction writers, and long-form content creators seeking deep editing and style analysis | Fiction writers, novelists, screenwriters, and creative writing enthusiasts |
| Differentiator | ProWritingAid offers the most in-depth manuscript-level analysis with 25+ writing reports, Chapter Critique, and Virtual Beta Reader specifically tailored for fiction and long-form storytelling—going far beyond grammar checking. | Purpose-built fiction AI with proprietary Muse model, Story Bible workflow, and a full suite of tools (Write, Expand, Rewrite, Feedback, Canvas, Visualize) designed specifically for novelists and screenwriters. |
| Competitors | Grammarly, Hemingway Editor, Scrivener, AutoCrit, Wordtune | Jasper, Copy.ai, Squibler, NovelAI, ChatGPT |
| Features | ||
| AI Copywriting | ✓ | ✕ |
| AI Research | ✕ | ✕ |
| Brand Voice | Basic — custom style guide and terminology management on Premium | Basic — matches user's writing style and voice via contextual analysis |
| Bulk Generation | ✕ | ✕ |
| Content Editor | ✓ | ✓ |
| Grammar Style | ✓ | ✓ |
| Image Generation | No | Built-in — Visualize feature generates art from character/worldbuilding descriptions |
| Long Form Writing | ✓ | ✓ |
| Paraphrasing | ✓ | ✓ |
| Plagiarism Checker | Built-in — available as add-on Story Credits purchase | No |
| SEO Optimization | ✕ | ✕ |
| Short Form Writing | ✓ | ✓ |
| Templates | ✕ | ✓ |
| Integrations | ||
| API Access | ✕ | ✕ |
| Chrome Extension | ✓ | ✕ |
| CMS | ✕ | ✕ |
| Google Docs | ✓ | ✕ |
| Key Integrations | Microsoft Word, Google Docs, Scrivener, Chrome Extension, Firefox Extension, Edge Extension, Desktop Editor | 1,000+ community-built Plugins for extended functionality (reader simulation, character dialogue, screenplay conversion, etc.) |
| Wordpress | ✕ | ✕ |
| Zapier | ✕ | ✕ |