Chapter twelve is drafted, the coffee's gone cold, and you want feedback before your editor sees it. AutoCrit leans into story analysis and genre market insight from a free account, while ProWritingAid leans into a full writing toolkit with planning prompts, a grammar checker and plot analysis. Choose by whether you need big picture story feedback or help at every stage.
Two editors built around different stages of a book
Self editing software tends to promise everything, so it helps to look at what each company puts first. AutoCrit calls itself an online manuscript editing platform for fiction and nonfiction, and it leads with line editing reports, AI story analysis and market tools. ProWritingAid calls itself the complete writer's toolkit, built for storytellers, and it walks you from planning through drafting to line editing and critique.
That's a real difference in starting point. AutoCrit assumes you've got pages and want to know if the story works and where it sits in the market. ProWritingAid assumes you might not have the pages yet and offers help from the first outline. Most writers need both at some point, which is why the choice depends on where you are with this book.
A quick way to place yourself: if your problem is a blank page or a shaky outline, you need planning help. If your problem is a finished draft that feels flat in the middle, you need story analysis. If your problem is a clean story with messy sentences, you need line editing. Each tool covers some of these better than others, and the sections below show where.
Strengths of each editor, from their own pages
AutoCrit's Story Analyzer+ gives AI feedback on conflict, characters, world building, foreshadowing and plot threads. Market Fuel looks at target audience, competition and genre trends, which is unusual for an editing tool and useful if you're writing to a market rather than only for yourself. Its plans page also lists guided editing for fiction and nonfiction genres, formatting tools for ePub and PDF export, and automated alpha and beta readers.
ProWritingAid's strengths sit across the whole process. Story Canvas gives guided prompts for characters, plot, setting and structure before you draft. Plot Analysis scans an outline or draft for pacing issues, structural weaknesses and missing story beats. The grammar checker handles grammar, spelling, punctuation and consistency, and the menu lists a Virtual Beta Reader and Marketability Analysis. There are also Writing Sprints, timed community sessions to build drafting speed, which is a nice touch for anyone who struggles to get words down at all.
- Story feedback: AutoCrit's Story Analyzer+ and ProWritingAid's Plot Analysis both look at structure, from different angles.
- Market view: AutoCrit's Market Fuel and ProWritingAid's Marketability Analysis both look outward at readers.
- Line level: ProWritingAid names a grammar checker; AutoCrit names line editing reports and guided editing.
- Before drafting: ProWritingAid names Story Canvas prompts; AutoCrit's pages focus on work already written.
- Readers: AutoCrit lists automated alpha and beta readers; ProWritingAid lists a Virtual Beta Reader.
Weak spots and limits to check
Neither company hides the limits of software, and that's worth respecting. AutoCrit's own Story Analyzer+ page says its AI doesn't replace the human touch when it comes to nuanced creative decisions. Take that at face value: a report can tell you a thread went quiet for four chapters, but only you know whether that silence is the point.
ProWritingAid's breadth cuts the other way. A toolkit that covers planning, drafting, line editing, critique and community sprints gives you a lot to learn, and it's easy to spend an afternoon on settings instead of revision. Writers who only want story level feedback may find themselves wading through grammar suggestions they didn't ask for.
There's also the question of the free route. AutoCrit invites you to create a free forever account. ProWritingAid's features page centres on the toolkit and doesn't describe a free plan, so check its own site before you assume one.
Free account, upgraded tier and the human touch
Here's what a quick look misses. AutoCrit's free account is a real starting point, but its plans page lists Story Analyzer+, Market Fuel and the automated alpha and beta readers on the tier that's described as everything in Free, plus. So the features most people sign up for, the AI story analysis and the market view, sit above the free account.
That's not a reason to avoid it. It's a reason to plan your trial: use the free account for the editing reports on a chapter you know well, then decide whether the story analysis is what you need before moving up. Put that next to AutoCrit's own line about the human touch, and the sensible approach is clear. Use the software to find problems faster, then make the creative calls yourself or with a human editor.
AutoCrit and ProWritingAid side by side
In no particular order, and listed alphabetically, here's how each company describes its tool.
| Tool | Kind of tool | Who it suits |
|---|---|---|
| AutoCrit | Manuscript editor and story analyser | Novelists wanting story analysis and genre market insight |
| ProWritingAid | Grammar checker and story critique | Writers wanting planning, drafting and line editing in one |
AutoCrit
Best for: Fiction and nonfiction authors wanting line editing reports, AI story analysis and market tools online. Vendor claim: fully unlimited, with no meters to worry about.
Want AI doing the heavy lifting in your marketing?
I build the systems that handle the boring 80 percent, so you get your week back. Done properly, with the human kept in.
ProWritingAid
Best for: Storytellers planning, drafting and line editing with a grammar checker and in depth writing reports. Vendor claim: the complete writer's toolkit, built for storytellers.
Matching the tool to your manuscript
If you've finished a draft and want AI feedback on conflict, characters and plot threads, plus a view on genre trends and your target audience, AutoCrit fits that stage, with its story analysis on the tier above the free account. If you want help from the first outline onwards, with guided prompts, plot analysis, a grammar checker and timed sprints to keep you drafting, ProWritingAid fits that stage. Run the same chapter through both and keep the one whose suggestions you'd act on.
For more options, see my list of ProWritingAid alternatives, my roundup of novel writing software, and my guide on whether ProWritingAid is free.
Do you make writing or editing software for authors? Tool makers can ask to be considered for a featured place on this list.
Want your tool on this list? Featured spots and reviews here are paid partnerships. Here's how to partner with me.
Frequently asked questions
Does AutoCrit offer a free plan?
Yes. AutoCrit invites you to create a free forever account. Its plans page lists Story Analyzer+, Market Fuel and automated alpha and beta readers on the upgraded tier, and what each tier includes can change.
Does ProWritingAid offer a free plan?
ProWritingAid's features page focuses on the toolkit rather than plans. Check ProWritingAid's own site for its current options before you sign up.
Which one checks grammar?
ProWritingAid names a grammar checker for grammar, spelling, punctuation and consistency. AutoCrit names line editing reports and guided editing for fiction and nonfiction genres.
Can either tool act as a beta reader?
AutoCrit lists automated alpha and beta readers, and ProWritingAid's menu lists a Virtual Beta Reader. Neither replaces real readers, and AutoCrit says its AI doesn't replace the human touch for nuanced creative decisions.
Can I export a finished book from AutoCrit?
According to AutoCrit's plans page, it includes integrated formatting tools for ePub and PDF export.
Is either one only for fiction?
No. AutoCrit describes itself as an editing platform for fiction and nonfiction, and ProWritingAid's tools for planning, grammar and structure apply to both kinds of book.
