AI writing assistant for grammar, clarity, tone and generative rewriting across apps.
ProWritingAid vs Wordtune
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 Wordtune is best for rephrasing sentences and adjusting tone while you write in the browser. ProWritingAid has a medium learning curve, compared with low for Wordtune. Both ProWritingAid and Wordtune 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 Wordtune if…
- You need rephrasing sentences and adjusting tone while you write in the browser
- You're one of: professionals writing emails and documents, students, non-native english writers
- You want something quicker to learn
- Rewrite suggestions keep your meaning while changing wording
At a glance
| ProWritingAid | Wordtune | |
|---|---|---|
| Best for | Deep style and structure editing for novelists and long-form writers | Rephrasing sentences and adjusting tone while you write in the browser |
| Free plan | Yes | Yes |
| Starting price | From $10/mo | From $6.99 |
| Learning curve | Medium | Low |
| Platforms | Web, Windows, macOS, Chrome extension | Web, Chrome extension |
| Ideal for | Fiction authors, Non-fiction and long-form writers, Editors, Students writing theses | Professionals writing emails and documents, Students, Non-native English writers |
Feature comparison
| ProWritingAid | Wordtune | |
|---|---|---|
| Grammar & style checking | Yes | Yes |
| Paraphrasing / rewriting | Yes | Yes |
| Long-form drafting | Limited | No |
| Brand voice / style guide | Limited | No |
| Plagiarism checker | Limited | No |
| AI content detection | — | — |
| Works in browser / other apps | Yes | Yes |
| Languages | English only | English |
| Team workspace | Limited | — |
IncludedLimited / higher plansNot available— Not confirmed
Security & enterprise
| ProWritingAid | Wordtune | |
|---|---|---|
| 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 | — |
| Audit logs | — | — |
| Admin controls | 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
Wordtune
Wordtune, from AI21 Labs, is a writing companion that suggests alternative phrasings for sentences, adjusts tone between casual and formal, shortens or expands text, and checks grammar and spelling. It also summarizes articles, PDFs and YouTube videos. It works mainly through a Chrome extension in tools like Google Docs and Gmail, plus a Word add-in, and is used by professionals, students and non-native English writers.
Key features- Sentence rewrites with multiple alternatives
- Casual/formal tone, shorten and expand controls
- Grammar and spelling corrections
- AI summarizer for articles, PDFs and YouTube videos
- Chrome extension for Google Docs, Gmail and other sites
- Microsoft Word integration
Pricing
ProWritingAid
Free plan. Premium ~$10/mo billed annually ($120/yr) or $30 monthly; Premium Pro ~$144/yr; lifetime options.
Wordtune
Free plan: yes (limited daily rewrites); Advanced/Unlimited from ~$6.99-9.99/mo billed annually
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.
Wordtune
Strengths- Rewrite suggestions keep your meaning while changing wording
- Unlimited grammar and spelling checks on the free plan
- Low-priced paid plans
- Works inside Google Docs, Gmail and Word
- Free plan limits rewrites per day and summaries per month
- No built-in plagiarism checker
- Not built for generating full long-form articles or campaigns
- No brand voice or style guide controls
Not ideal for: Marketing teams generating campaigns at scale or writers needing plagiarism checks should choose a platform built for those tasks.
Integrations
ProWritingAid
Wordtune
FAQ
What is the main difference between ProWritingAid and Wordtune?
ProWritingAid is built for deep style and structure editing for novelists and long-form writers; Wordtune is built for rephrasing sentences and adjusting tone while you write in the browser.
Is ProWritingAid or Wordtune cheaper?
ProWritingAid starts from $10/mo and Wordtune starts from $6.99 (as of September 2026). On entry price, Wordtune is cheaper — but compare what each plan includes, since limits differ. Always confirm current pricing on each vendor's site.
Do ProWritingAid and Wordtune have free plans?
Both ProWritingAid and Wordtune offer a free plan, so you can try each before paying.
Which is easier to use, ProWritingAid or Wordtune?
Wordtune is generally quicker to learn (ProWritingAid: medium, Wordtune: low learning curve).
What are good alternatives to ProWritingAid and Wordtune?
Other writing tools worth comparing include Grammarly, QuillBot and Writesonic.
