Marlowe vs Fictionary vs AutoCrit: Book Analysis Compared

Marlowe, Fictionary and AutoCrit all analyze your novel, but they work in three different ways. Marlowe reads a finished manuscript and returns a report in a few minutes. Fictionary walks you through your draft scene by scene, and AutoCrit is a writing platform with editing tools, a story analyzer and simulated readers.

So the best book analysis software for authors depends on the job: a one-off diagnostic, a guided structural self-edit, or one place to write, polish and test. Prices and features below are as listed on each vendor's own pages on 14 October 2026.

StoryWith AI comes up near the end as a fourth option. StoryWith AI is our own product, so weigh what we say about it accordingly.

Key takeaways

• Marlowe, from Authors A.I., is a report rather than an editor: upload a .docx or ePub and get a whole-manuscript analysis in a few minutes. Basic is free, and a Pro report is $29.95.
• Fictionary is a guided structural self-edit built on 38 story elements and 15 visualizations. You fill in most of the scene data yourself, and plans start at $19 a month after a 7-day free trial.
• AutoCrit is a writing platform whose Pro plan adds Story Analyzer+ and 20+ simulated reader avatars, at $30 a month or $180 a year per its comparison page.
• For repeat passes, Marlowe charges per report (one credit per Pro submission, even for the same manuscript). Fictionary and AutoCrit charge a flat subscription.
• Over three monthly passes on a 90,000-word novel, the cheapest of the three are Fictionary StoryTeller ($57) and Marlowe's monthly plan ($59.85).

At a glance

Prices as listed on each vendor's pages on 14 October 2026. AutoCrit's figures come from its own comparison page, because its pricing page showed two conflicting sets of prices when checked.

Marlowe: the whole-manuscript report

Marlowe is the manuscript analysis tool from Authors A.I. You upload a finished draft as a .docx or ePub file, and the report arrives in a few minutes.

The Pro report covers plot and character development; pacing, structure, conflict and narrative arc; dialogue, setting and voice; and readability and clichés. It closes with a checklist, an overall assessment and key recommendations.

A separate Market Fit report lists 20 comparable titles, 5 elevator pitches and a market readiness score. It costs $29.95 or 2 credits.

As listed on 14 October 2026, Basic is free, a single Pro report is $29.95, the monthly plan is $19.95 for 4 credits, and the annual plan is $159 for 48 credits. Plan credits don't roll over (a single-report credit doesn't expire), and each Pro submission uses a credit, even for the same manuscript. Basic is free to rerun, but covers only about six areas.

Two limits are worth knowing. Marlowe is fiction-first, covering 22 fiction genres according to its FAQ, and its pages disagree on minimum length: 10,000 words in the FAQ, 20,000 on the Marlowe product page.

There's no editor, so you make the changes wherever you write. Authors A.I. says it never uses manuscripts for training. For a different workflow, see our Marlowe alternative for ongoing analysis.

Fictionary: the scene-by-scene structural edit

Fictionary is built around one method. You assess each scene against 38 story elements covering character, plot and setting, and Fictionary turns that data into 15 visualizations of your story.

The detail that matters is who does the reading. You update most of the story elements yourself, though some are filled in automatically.

An optional AI feature called Just Ask Fictionary can check your scene structure for you, and an AI instructor, Edwina, adds scene-specific feedback.

So Fictionary doesn't extract all 38 elements for you. That is the cost and the point: the work trains you to read your own draft structurally.

As listed on 14 October 2026, StoryTeller is $19 a month or $168 a year, and StoryTeller Premium is $39 a month or $348 a year for 10 manuscripts. StoryCoach, at $49 a month or $396 a year, supports 20 clients at a time. There's a 7-day free trial with no card required.

If the scene-by-scene data entry is the sticking point, compare Fictionary alternatives that automate the structural read.

AutoCrit: the editor with a story analyzer and reader avatars

AutoCrit is a writing platform first. Its free plan has no word limits and includes select editing tools such as Adverbs, Word Choice and Readability.

Pro adds Story Analyzer+, automated alpha and beta readers, a comparison of your style with major genres, and a Summary Report with an AutoCrit Score.

Story Analyzer+ tracks character arcs, conflict and active plot threads, and AutoCrit says results arrive in minutes. Its feature list includes premise, characters, world-building, contradictory events, timeline, foreshadowing, POV, genre, tropes, structure and story beats, chapter analysis and full series analysis.

On the reader side, Pro offers 20+ ready-made reader avatars that give alpha and beta impressions, and you can build your own. AutoCrit's AI beta reader page says automated reads aren't capped, and AutoCrit says you can track previous drafts.

As listed on AutoCrit's comparison page on 14 October 2026, AutoCrit costs $30 a month or $180 a year ($15 a month), with lifetime deals during promotions. Its pricing page displayed conflicting figures when checked, so confirm the price at checkout.

For other options, see our guide to AutoCrit alternatives for structural editing.

Head to head by job

Structure

All three cover structure. Marlowe and Story Analyzer+ hand you a verdict in minutes, so use one of them for a fast read on pacing and arc.

Fictionary gives you a framework and makes you do the reading. It's slower, but it teaches you why a scene isn't pulling its weight.

Line-level

AutoCrit is built for this: its editing tools sit in the platform where you revise. Marlowe's report comments on dialogue, voice, readability and clichés, but you fix them elsewhere. Fictionary's story elements cover character, plot and setting rather than sentences, so line editing isn't what it's built around.

Reader simulation

Among the features covered here, only AutoCrit offers simulated readers: 20+ avatars with alpha and beta impressions, plus ones you build.

Treat any simulated reader as a first pass, not evidence of how an audience will respond. Our guide to what an AI beta reader can and can't tell you covers where they help.

Rescans after revision

This is where the pricing models split. Marlowe uses one credit per Pro submission, even for the same manuscript, and unused plan credits don't roll over. The free Basic report can be rerun without limit, but it covers only about six areas.

Fictionary and AutoCrit are flat subscriptions. In Fictionary you update your scene data as you revise. AutoCrit says automated reads aren't capped and that Pro includes unlimited AI analysis, with no extra charge to analyze the same book again.

Non-fiction

Marlowe is fiction-first, with 22 fiction genres in its FAQ, and Fictionary's story elements are fiction concepts too. AutoCrit is different: it lists a Nonfiction Analyzer, a Nonfiction Builder and guided editing for non-fiction genres such as business, memoir and academic. For a business book or a history, check with the vendor before you pay.

What a revision cycle costs

Take a common case: a 90,000-word novel revised in three passes. That length clears both of Marlowe's stated minimums.

A pass means different work in each tool: a new Marlowe report, a round of updates to Fictionary's scene data, or a fresh Story Analyzer+ run. The arithmetic below uses only prices listed on 14 October 2026.

Fictionary's figure buys the framework, not a finished report: the reading time is yours. AutoCrit's relies on its own statement that Pro includes unlimited AI analysis.

Paying yearly instead, Marlowe's annual plan is $159 for 48 credits, Fictionary StoryTeller is $168, and AutoCrit is $180. Those make sense only if you'll keep revising across the year.

If you're weighing software against a human developmental editor, the book editing cost calculator estimates that fee for your word count from EFA rates.

Where StoryWith AI fits as a fourth option

StoryWith AI reads the manuscript you wrote and answers editorial questions about it, without writing the book for you. You revise in the same place, and it brings real readers into the loop.

Its analyzers cover story structure, beat coverage (setups and payoffs), emotional arc and pacing, dialogue, continuity and plot holes, readability, theme, scene purpose and character arcs. Every finding lands in one ranked list, Book Health, sorted by severity and linked to the exact scene, alongside a manuscript readiness score.

You can test a chapter on three to five simulated reader personas as a first pass, then invite up to 20 beta readers to a private feedback session through a share link, without handing over the file. For non-fiction, it adds argument mapping, soundness checks, fact-check support against your sources and citation export in APA, MLA or Chicago.

On cost, a book-level pass of a 90,000-word novel (every book-wide analyzer plus a full continuity scan) uses about 18 of the Author plan's 500 monthly AI text actions. Three passes use about 3 × 18 = 54 of those actions. Author is $19 a month or $149 a year, so that's $19 in one month or 3 × $19 = $57 over three months; Pro is $39 a month with unlimited AI text actions.

There's a free plan with every tool and a one-time AI allowance, and you can see how it approaches AI developmental editing before you sign up.

It's the wrong pick if you want one report and nothing else, where Marlowe's single report is simpler, or if you want a manual framework to train your editorial eye, which is Fictionary's strength.

Which should you pick?

Comparing beyond these three? Browse our full list of writing tool alternatives.

Frequently Asked Questions (FAQ)

AutoCrit vs Fictionary: which is better for structure?

Fictionary is better if you want to learn structure, because you assess each scene against 38 story elements yourself. AutoCrit is better if you want a fast verdict: it says Story Analyzer+ delivers results in minutes, inside the platform where you write.

Fictionary vs Marlowe: what's the difference?

Marlowe is a one-shot report on a finished manuscript, priced per credit. Fictionary is a subscription tool you work in scene by scene, entering most of the story data yourself.

AutoCrit vs Marlowe: which costs less for several passes?

It depends on timing, assuming each pass is one Marlowe report or one Story Analyzer+ run. Three passes in one month cost $19.95 on Marlowe's monthly plan versus $30 on AutoCrit Pro; spread over three months, they cost $59.85 versus $90, as listed on 14 October 2026.

Does Fictionary use AI to fill in its 38 story elements?

Only partly. Some elements are filled in automatically and an optional AI feature, Just Ask Fictionary, can check scene structure; you update the rest yourself.

What is Marlowe's minimum word count?

Its pages disagree. The Authors A.I. FAQ says 10,000 words and the Marlowe product page says 20,000, so a full-length novel clears both, but check before uploading anything shorter.

How much does AutoCrit cost?

AutoCrit's comparison page listed $30 a month or $180 a year ($15 a month) on 14 October 2026, with lifetime deals during promotions. Its pricing page showed conflicting figures that day, so confirm at checkout.

Can these tools analyze non-fiction?

Marlowe is fiction-first and Fictionary is built around fiction story elements, while AutoCrit lists a Nonfiction Analyzer and guided editing for non-fiction genres. If you write non-fiction, check with each vendor first, or look for a tool with argument and citation checks.

The short answer

Pick Marlowe for a fast, one-off diagnostic, Fictionary for a guided structural self-edit you do yourself, and AutoCrit for a single platform where you write, line-edit and test on simulated readers. If you revise in several passes, run the numbers first: over three monthly passes, Fictionary StoryTeller ($57) and Marlowe's monthly plan ($59.85) are the cheapest of the three.