AI writing assistant for grammar, clarity, tone and generative rewriting across apps.
ProWritingAid vs QuillBot
Features, pricing, strengths and trade-offs — and which one fits your situation.
The verdict
Summary
ProWritingAid is best for deep style and structure editing for novelists and long-form writers, while QuillBot is best for paraphrasing, summarizing and checking academic or everyday writing on a budget. ProWritingAid has a medium learning curve, compared with low for QuillBot. Both ProWritingAid and QuillBot offer a free plan, so you can try each before paying.
Which should you choose?
Choose ProWritingAid if…
- You need deep style and structure editing for novelists and long-form writers
- You're one of: fiction authors, non-fiction and long-form writers, editors
- More detailed style reports than general-purpose checkers
Choose QuillBot if…
- You need paraphrasing, summarizing and checking academic or everyday writing on a budget
- You're one of: students, academic researchers, non-native english writers
- You want something quicker to learn
- Many writing tools bundled under one subscription
At a glance
| ProWritingAid | QuillBot | |
|---|---|---|
| Best for | Deep style and structure editing for novelists and long-form writers | Paraphrasing, summarizing and checking academic or everyday writing on a budget |
| Free plan | Yes | Yes |
| Starting price | From $10/mo | From $19.95/mo |
| Learning curve | Medium | Low |
| Platforms | Web, Windows, macOS, Chrome extension | Web, Windows, macOS, iOS, Android, Chrome extension |
| Ideal for | Fiction authors, Non-fiction and long-form writers, Editors, Students writing theses | Students, Academic researchers, Non-native English writers, Bloggers rewriting drafts |
Feature comparison
| ProWritingAid | QuillBot | |
|---|---|---|
| Grammar & style checking | Yes | Yes |
| Paraphrasing / rewriting | Yes | Yes |
| Long-form drafting | Limited | No |
| Brand voice / style guide | Limited | No |
| Plagiarism checker | Limited | Paid plans only |
| AI content detection | — | Yes |
| Works in browser / other apps | Yes | Yes |
| Languages | English only | 23 (paraphraser) |
| Team workspace | Limited | Yes |
IncludedLimited / higher plansNot available— Not confirmed
Security & enterprise
| ProWritingAid | QuillBot | |
|---|---|---|
| Business / enterprise plan | Yes | 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 | Team plan |
| Audit logs | — | — |
| Admin controls | Yes | Yes |
| Deployment | Cloud | Cloud |
From each vendor's security documentation. "—" = not confirmed. What to ask vendors · Compare all tools
What each tool does
ProWritingAid
ProWritingAid 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.
Key features- 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
QuillBot
QuillBot is a writing toolkit built around its paraphraser, which rewrites text in modes such as Standard, Fluency, Formal, Academic, Simple, Creative, Expand and Shorten. It also includes a grammar checker, summarizer, AI detector, AI humanizer, plagiarism checker, citation generator, translator and AI chat. Students, researchers and non-native English writers make up much of its user base.
Key features- Paraphraser with multiple rewriting modes and custom modes
- Grammar checker and summarizer
- AI detector and AI humanizer
- Plagiarism checker (Premium)
- Citation generator and translator
- Extensions for Chrome, Edge, Safari and Word
Pricing
ProWritingAid
Free plan. Premium ~$10/mo billed annually ($120/yr) or $30 monthly; Premium Pro ~$144/yr; lifetime options.
QuillBot
Free plan (limited paraphrasing). Premium $19.95/mo monthly or $99.95/yr (~$8.33/mo).
Prices last checked September 2026. Plans change often — confirm on each vendor's site.
Pros and cons
ProWritingAid
Strengths- 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
- 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
Not ideal for: People who mainly need quick fixes in emails and chat, or writing in languages other than English, will find lighter or multilingual tools easier.
QuillBot
Strengths- Many writing tools bundled under one subscription
- Paraphrasing supports 20+ languages
- Available on web, desktop, mobile and browser extensions
- Has a free plan with core tools
- Free plan limits paraphrasing length and modes
- Plagiarism checks are capped by monthly word count even on Premium
- Not designed for generating long-form marketing content
- No brand voice or style guide controls
Not ideal for: Marketing teams that need brand-consistent campaigns or long-form content generation will be better served by a marketing AI platform.
Integrations
ProWritingAid
QuillBot
FAQ
What is the main difference between ProWritingAid and QuillBot?
ProWritingAid is built for deep style and structure editing for novelists and long-form writers; QuillBot is built for paraphrasing, summarizing and checking academic or everyday writing on a budget.
Is ProWritingAid or QuillBot cheaper?
ProWritingAid starts from $10/mo and QuillBot starts from $19.95/mo (as of September 2026). On entry price, ProWritingAid is cheaper — but compare what each plan includes, since limits differ. Always confirm current pricing on each vendor's site.
Do ProWritingAid and QuillBot have free plans?
Both ProWritingAid and QuillBot offer a free plan, so you can try each before paying.
Which is easier to use, ProWritingAid or QuillBot?
QuillBot is generally quicker to learn (ProWritingAid: medium, QuillBot: low learning curve).
What are good alternatives to ProWritingAid and QuillBot?
Other writing tools worth comparing include Grammarly, Writesonic and Koala AI.
