Is AutoCrit or ProWritingAid better for fiction?

AutoCrit is built only for fiction and benchmarks your prose against published books in your genre, which ProWritingAid does not do. ProWritingAid is a stronger grammar checker, works inside Word, Google Docs, and Scrivener, and covers every kind of writing. For a novelist who writes nothing else, AutoCrit is usually the better fit; for an author who wants one tool for everything, ProWritingAid is.

Does ProWritingAid or AutoCrit read the whole book?

Both can. ProWritingAid's Manuscript Analysis reads up to 300,000 words in one run but is sold separately as a Story Credit. AutoCrit's Story Analyzer is included with Pro and runs on the whole manuscript or chapter by chapter, with each chapter needing to be between 200 and 10,000 words. In both cases the result is a static report you read and act on alone.

Do I still need a developmental editor if I use AutoCrit or ProWritingAid?

Both companies say their tools are not a replacement for a developmental editor, and that is accurate. Their reports measure your prose and their AI analyses hand you a one-way report. If you want the whole book read, an honest editorial letter, and notes you can discuss and revise against, Edith does that job from $15, and never rewrites your words.

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AutoCrit vs ProWritingAid: Which One Should a Novelist Buy?

AutoCrit vs ProWritingAid for fiction writers: what each does well, what each costs in 2026, where both stop, and how to pick the right one for your novel.

By Edith11 September 20267 min read

TL;DR

AutoCrit and ProWritingAid are both line-level editing tools with a story-analysis add-on, and the honest difference is shape, not quality. AutoCrit is built only for fiction: it benchmarks your prose against published books in your genre and includes unlimited AI story analysis in one $30-a-month Pro plan, but it lives in its own web editor. ProWritingAid works everywhere you write (Word, Google Docs, Scrivener, your browser), offers a $399 lifetime licence, and sells its whole-manuscript analysis separately at $25 to $50 a run. Choose AutoCrit if you write only novels and want genre benchmarks; choose ProWritingAid if you want one tool for all your writing. Neither replaces a developmental edit, and both say so. For that job, Edith reads the whole book, talks each note through with you, and never rewrites a word, from $15.

If you have a finished draft and a small budget, AutoCrit and ProWritingAid are usually the two names that come up first. They look similar from the outside: both scan your manuscript, both flag overused words and weak sentences, both now offer some kind of AI story feedback. If it is only ProWritingAid you are weighing up, we reviewed it on its own in our ProWritingAid review. Most comparisons online are several years old, and the pricing in them is wrong. This one was checked against both companies' own pages in September 2026, and it is written for one reader: a novelist deciding where a limited editing budget should go, which starts with knowing which kind of editing the book needs.

The short answer

Pick AutoCrit if you only write fiction and want your prose measured against published books in your genre, with story analysis included in the price. Pick ProWritingAid if you want one tool that follows you into Word, Google Docs, and Scrivener, and you like the idea of paying once for a lifetime licence. Both are line-level tools at heart. Both have added AI story analysis that arrives as a report. Neither claims to replace a developmental editor, and both are right about that.

What each tool actually is

AutoCrit has been around since 2005 and is built for fiction only. Its core is a library of more than twenty editing reports that count and flag patterns in your prose: adverbs, filler words, repeated phrases, dialogue tags, passive voice, pacing, and sentence variety. AutoCrit is candid that these reports are algorithmic, based on comparative data sets, with no generative AI involved. What makes them different from a generic style checker is the benchmark: your numbers are compared against data drawn from published fiction in your genre, so a thriller and a literary novel are held to different standards. Its newer Story Analyzer does use generative AI, and produces reports on plot threads, character arcs, timeline, contradictions, and pacing. We looked at it in depth in our AutoCrit review.

ProWritingAid is a general writing tool that happens to be very good at long manuscripts. It has more than twenty-five reports of its own, covering grammar, style, readability, overused words, sentence length, pacing, dialogue, and sensory language, and it runs inside almost everything: Word, Google Docs, Scrivener, a desktop app, and browser extensions. It also offers Rephrase and Sparks, which suggest alternative wordings for your sentences. On the story side it sells Chapter Critique (a chapter at a time) and Manuscript Analysis, which reads up to 300,000 words and returns a report on plot, structure, character, theme, pacing, and setting. ProWritingAid states plainly that Manuscript Analysis is not meant to replace a human developmental editor or beta reader.

Where AutoCrit is stronger

Genre benchmarking. Comparing your dialogue, pacing, and word choice against published books in your genre is the feature ProWritingAid does not have, and for a novelist it is the most useful thing in either tool.
Fiction-first reports. Point-of-view consistency, dialogue pacing, and paragraph variation are built for novels, not for emails and essays.
Story analysis in the price. AutoCrit Pro includes unlimited use of its AI story analysis, so re-running it after a revision costs nothing extra.
A series view. AutoCrit can analyze across books in a series, which ProWritingAid does not offer.
No word limits on the free plan. The free tier is restricted to a few reports, but it will take a whole manuscript.

Where ProWritingAid is stronger

It works where you write. AutoCrit is a web editor you paste into; ProWritingAid runs inside Word, Google Docs, Scrivener, and your browser, so there is no copying back and forth.
Grammar and mechanics. ProWritingAid is a proper grammar checker as well as a style tool. AutoCrit is not really trying to be one.
A lifetime option. If you will use a line tool for years, $399 once beats a subscription that never ends.
A bigger manuscript ceiling for story analysis. Manuscript Analysis reads up to 300,000 words in one run.
Everything else you write. Query letters, blurbs, newsletters, the day job: one subscription covers all of it.

What they cost in 2026

AutoCrit has a Free Forever plan with a handful of reports and no word limit, and a $1 trial. Pro is $30 a month, or $15 a month if you pay for a year up front, and it includes the full report library, genre comparison, and unlimited story analysis.

ProWritingAid's free plan checks 500 words at a time. Premium is $30 a month, $120 a year, or $399 for life. Premium Pro is $36 a month, $144 a year, or $699 for life, and adds more daily Chapter Critiques (30 a day against 1 on Premium). The catch for novelists is that Manuscript Analysis, Plot Analysis, Character Analysis, and Virtual Beta Reader are not included in either subscription. They run on Story Credits, sold at roughly $50 each on the free plan, $35 with Premium, and $25 with Premium Pro, with one free credit when you open an account. So a Premium Pro subscriber who runs Manuscript Analysis three times across a revision pays $144 for the year plus about $50 in credits after the free one.

Both companies state that they do not use your manuscript to train their AI, which matters if you are wary of uploading a book anywhere. It is worth reading each privacy page yourself before you decide.

Where both tools stop

This is the part most comparisons skip, and it decides whether either tool is worth your money.

Counting is not reading. Every editing report in both tools measures the surface of your prose: how many adverbs, how long the sentences, how often a word repeats. Useful, and quick, but it cannot tell you whether the story works, which is the question most finished drafts actually need answered.
Story analysis arrives as a report. ProWritingAid's Manuscript Analysis and AutoCrit's Story Analyzer both hand you a document and leave. There is no way to ask what a note means, disagree with it, or have the tool reconsider in light of something it missed. The interpreting and the deciding are all on you.
Chapters, and limits. AutoCrit's Story Analyzer can run on the whole manuscript or chapter by chapter, but it needs your chapters marked and each between 200 and 10,000 words. ProWritingAid's Chapter Critique is one chapter at a time by design. Only Manuscript Analysis reads the whole book, and it is the one you pay per run for.
Rewrites can sand your voice. ProWritingAid's Rephrase and Sparks suggest replacement sentences, and accepting them one at a time across ninety thousand words can slowly make the book sound less like you. AutoCrit's editing reports flag rather than replace, though it has a separate Inspiration Studio that does use generative AI. If keeping your voice intact is a priority, our guide to editing your novel without losing your voice is worth reading first.
Neither re-reads after you revise. Fix a plot hole in chapter ten and nothing checks whether chapter twenty-two still makes sense. You run the analysis again from scratch, and with ProWritingAid you pay for it again.

Both tools are excellent at telling you about your sentences. Neither is built to tell you whether your story works.

So, AutoCrit or ProWritingAid?

If you write novels and nothing else, and you want to see how your prose compares to published books in your genre, AutoCrit is the better fit, and its included story analysis makes the monthly price easy to justify. If you want one tool for every kind of writing, you work in Word or Scrivener and do not want to paste chapters into a website, or you would rather pay once for life, ProWritingAid is the better fit, as long as you budget for Story Credits if you want the whole-book report.

Either way, be clear about what you are buying. Both are line-editing tools with story analysis attached, which means they belong late in the process, after the story itself is settled. If you are not sure the story is settled, that is a different job, and a cheaper tool will not do it. Our guide to what kind of editing your book actually needs sorts out which pass comes first, and the best tools for editing a manuscript roundup places both of these alongside the alternatives.

The job neither one does: Edith

Edith was built for the gap both tools leave open. She reads your entire manuscript, up to 150,000 words, before she says a word, so she can follow a character, a plot thread, or a promise made in chapter two all the way to the end. Instead of a dashboard, she writes you an honest editorial letter: what is working, what is holding the book back, and why. Then she takes you through the notes one at a time, and you can ask what a note means, push back, or settle it your way. When you revise, she re-checks the whole book so a fix in one chapter does not quietly break another. And she never rewrites your words, on any stage, so the voice in the finished book stays yours.

She is not a replacement for a line tool, and she does not try to be. Plenty of authors will run AutoCrit or ProWritingAid over their sentences after the story is right. The point is the order: the story first, then the polish. A first read with Edith costs $15 for the whole novel. For the head-to-head detail, see Edith vs AutoCrit and Edith vs ProWritingAid.

See where your story stands, free

Edith reads your first 10,000 words and writes you an editorial letter, no credit card needed. The whole book, with every point open to discuss, is $15. Every word stays yours.

Read my first 10,000 words, freeSee how it works

Sources:AutoCrit, pricingAutoCrit, FAQs (editing reports are algorithmic)AutoCrit, Story AnalyzerAutoCrit Help Center, 200-word limit for the Story AnalyzerProWritingAid, pricingProWritingAid, Manuscript AnalysisProWritingAid, Story CreditsProWritingAid Help Center, are the analyses included in Premium?ProWritingAid, approach to AI (no training on your writing)

Frequently asked questions

Is AutoCrit or ProWritingAid better for fiction?: AutoCrit is built only for fiction and benchmarks your prose against published books in your genre, which ProWritingAid does not do. ProWritingAid is a stronger grammar checker, works inside Word, Google Docs, and Scrivener, and covers every kind of writing. For a novelist who writes nothing else, AutoCrit is usually the better fit; for an author who wants one tool for everything, ProWritingAid is.
Does ProWritingAid or AutoCrit read the whole book?: Both can. ProWritingAid's Manuscript Analysis reads up to 300,000 words in one run but is sold separately as a Story Credit. AutoCrit's Story Analyzer is included with Pro and runs on the whole manuscript or chapter by chapter, with each chapter needing to be between 200 and 10,000 words. In both cases the result is a static report you read and act on alone.
How much do AutoCrit and ProWritingAid cost in 2026?: AutoCrit Pro is $30 a month, or $15 a month billed annually, with a free tier and a $1 trial. ProWritingAid Premium is $30 a month, $120 a year, or $399 for life; Premium Pro is $36 a month, $144 a year, or $699 for life. ProWritingAid's whole-manuscript analyses cost an extra $25 to $50 per run in Story Credits, with one free credit on signup.
Do I still need a developmental editor if I use AutoCrit or ProWritingAid?: Both companies say their tools are not a replacement for a developmental editor, and that is accurate. Their reports measure your prose and their AI analyses hand you a one-way report. If you want the whole book read, an honest editorial letter, and notes you can discuss and revise against, Edith does that job from $15, and never rewrites your words.