ProWritingAid vs Wordtune

Two fact sheets from our own research, side by side — pricing, platforms, API access and status re-checked by us rather than quoted from the vendors.

The short answer

Cheaper paid plan: Wordtune — $4.89/mo vs $10/mo for ProWritingAid
Free plan: Both have one
Higher Trust score: ProWritingAid — 96 vs 91 for Wordtune
Best fit: ProWritingAid: Fiction authors editing a full manuscript before querying or self-publishing · Wordtune: Non-native English writers who need a sentence to read naturally, not be rewritten wholesale
Platforms: ProWritingAid: Web, Chrome extension, Windows, macOS · Wordtune: Web, Chrome extension

From our own records as of each tool's last check. Anything we have not confirmed is left out rather than guessed. How we verify

ProWritingAidManuscript editor for fiction authors with grammar, style and pacing reports, AI rephrasing and chapter critiques

WordtuneSentence rewriter that keeps the meaning you intended

Side by side

Fact	ProWritingAid	Wordtune
Category	Grammar & Proofreading	Paraphrasing & Rewriting
Pricing model	Freemium	Freemium
Starts at	$10/mo	$4.89/mo
Trust score	96 / 100	91 / 100
Platforms	Web, Chrome extension, Windows, macOS	Web, Chrome extension
Company	Orpheus Technology Ltd	AI21 Labs
Launched	2013	2020
Last verified	Sep 6, 2026	Sep 6, 2026

What our research says

ProWritingAid

For novelists, ProWritingAid is the editor that looks at pacing, repetition, dialogue tags and chapter structure rather than just commas, and the yearly price is a third of the monthly one. The reports take time to learn and the newer AI critique features are rationed by daily caps even on paid plans. If you write emails and reports rather than manuscripts, you are paying for depth you will not use.

Pros

Reports on style, readability, repetition, pacing and dialogue, not just grammar
Chapter and manuscript critiques, character analysis and a virtual beta reader on paid plans
Integrations across Word, Google Docs, Scrivener, browsers, Notion, Pages and a desktop editor
Yearly Premium at $10 a month, plus a lifetime option at $399

Cons

Monthly billing is three times the yearly rate ($30 versus $10)
AI critique and Sparks are capped per day even on Premium (1 chapter critique, 5 Sparks)
Free tier checks only 500 words at a time
Report density is overwhelming at first and takes time to learn

Wordtune

Wordtune still does the one thing it was built for better than the general assistants do, but its owner is in visible trouble and the product has not shipped news in two years. Cheap and useful today, risky as a dependency.

Pros

Rewrites preserve intent instead of paraphrasing into something else, which is the whole point
In-place browser extension avoids the copy-paste round trip
Cheapest tier is under $5 a month on annual billing

Cons

Parent AI21 Labs is in financial distress: a $300M round never closed, acquisition talks with NVIDIA and then Nebius, and reported layoffs above 60%
The product blog has not been updated since June 2024 and the site footer still reads 2025
AI21's own site no longer mentions Wordtune anywhere, suggesting it is no longer a strategic product
Free tier's 10 rewrites a day is exhausted in a single editing session

Which one fits

Choose ProWritingAid if you need

Fiction authors editing a full manuscript before querying or self-publishing
Writers who want structural feedback (pacing, chapter critique, beta-reader style notes) alongside grammar
Scrivener, Word and Google Docs users who want checks inside their existing tool

Choose Wordtune if you need

Non-native English writers who need a sentence to read naturally, not be rewritten wholesale
Anyone editing inside Gmail, Docs or LinkedIn who wants suggestions in place
Light users, since the free tier is genuinely usable for occasional rewriting