AI writing assistant for grammar, clarity, tone and generative rewriting across apps.
ProWritingAid
AI Writing & CopywritingProWritingAid is a grammar checker and style editor with 25+ reports covering readability, pacing, dialogue, overused words and more. It adds AI tools such as Rephrase, Sparks, Chapter Critique and full Manuscript Analysis, plus a Virtual Beta Reader and story planning tools. It is used mostly by fiction authors, non-fiction writers and editors working on long documents.
Pricing
ProWritingAid pricing
Free plan. Premium ~$10/mo billed annually ($120/yr) or $30 monthly; Premium Pro ~$144/yr; lifetime options.
Last checked September 2026 · Confirm on prowritingaid.com
Features
What ProWritingAid does
- 25+ in-depth writing reports (pacing, dialogue, readability)
- Rephrase and Sparks AI suggestions
- Chapter Critique and Manuscript Analysis
- Story Canvas planning tools
- Integrations with Word, Google Docs and Scrivener
- Desktop apps and browser extensions
Pros
- More detailed style reports than general-purpose checkers
- Handles full-length manuscripts on paid plans
- Works in Scrivener, Word, Google Docs and more
- Lifetime purchase option available
Cons
- English only
- Free plan limits checks to short passages a few times per day
- Interface with many reports can feel overwhelming
- Manuscript Analysis requires separately purchased story credits
Fit
Who ProWritingAid is for
Look elsewhere if: People who mainly need quick fixes in emails and chat, or writing in languages other than English, will find lighter or multilingual tools easier.
For teams & enterprise
Enterprise readiness
Business/Enterprise plans with SAML SSO and DPAs; states SOC 2 compliance (report type not published) and no training on user text.
- Business / enterprise plan
- Yes
- SSO (SAML / OIDC)
- Enterprise plan
- SCIM user provisioning
- —
- SOC 2
- —
- ISO 27001
- —
- HIPAA (BAA available)
- —
- GDPR DPA
- Enterprise plan
- Data residency options
- US, EU (Azure)
- No training on your data
- Yes
- Audit logs
- —
- Admin controls
- Yes
- Deployment
- Cloud
From the vendor's own security documentation (trust center). "—" = not confirmed. Verify during your security review. Compare all tools.
| Writing feature checklist | |
|---|---|
| Grammar & style checking | Yes |
| Paraphrasing / rewriting | Yes |
| Long-form drafting | Limited |
| Brand voice / style guide | Limited |
| Plagiarism checker | Limited |
| AI content detection | — |
| Works in browser / other apps | Yes |
| Languages | English only |
| Team workspace | Limited |
ProWritingAid compared
- ProWritingAid vs Grammarly
- ProWritingAid vs QuillBot
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- ProWritingAid vs Jasper
- ProWritingAid vs Koala AI
- ProWritingAid vs Rytr
- ProWritingAid vs Copy.ai
- ProWritingAid vs Hypotenuse AI
- ProWritingAid vs Wordtune
Buying guides
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