StoryHelm vs ProWritingAid: Line Editing vs Series Continuity
ProWritingAid works on sentences: grammar, style, readability, pacing and rephrasing, line by line. StoryHelm works on the story: it reads each book of your series, builds its canon and flags where the facts, the timeline or the setups stop agreeing, and it never rewrites your prose. Most novelists want a line tool and a continuity read; they are different jobs.
What ProWritingAid is for
From prowritingaid.com’s pricing and features pages, checked October 13, 2026. ProWritingAid is a line-level editing tool: grammar, style and readability reports on the sentences you have written. Its features page lists a Pacing report (“Identify slower sections of your story”), a Consistency check that catches “inconsistencies in spelling, capitalization, hyphenation, and punctuation”, a Chapter Critique, and a Manuscript Analysis and Virtual Beta Reader bought with Story Credits. Two features suggest new wording: Rephrase, which its page describes as “alternative phrasings to fix awkward sentences, shift tone, or improve clarity”, and Sparks, which offers “intelligent rewriting suggestions”. Plans on the day: Free; Premium at $10 a month billed yearly ($120), $30 month to month, or $399 once; Premium Pro at $12 a month billed yearly ($144), $36 month to month, or $699 once.
The difference: a consistency check that means mechanics, and one that means story
When ProWritingAid says consistency, its features page means spelling, capitalization, hyphenation and punctuation: whether you wrote “gray” and “grey” in the same book. When StoryHelm says continuity, it means the facts of the story: whether the eyes that were gray in chapter two are green in chapter thirty, whether the clock inside the book adds up, whether a setup ever paid off. In a Full read (the Author, Series and Studio plans, and the free trial at public launch), nineteen analyses read each book against its own canon, often quoting the line that raised a flag; a cross-book check you start compares what the books record about the same characters’ appearance and voice and the same events’ dates. Nothing in a read rewrites a sentence for you: you write every word, in its built-in editor or in files you import, and it reads.
Side by side
| What you need | StoryHelm | ProWritingAid |
|---|---|---|
| Rewrites or suggests rewrites of your sentences | Never By design: it reads, you write | Yes Rephrase, Sparks (its pages) |
| Consistency | Story facts Traits, timeline, places, knowledge, relationships, inside a book, in a Full read | Mechanics Spelling, capitalization, hyphenation, punctuation (prowritingaid.com features page) |
| Pacing | Yes Plot DNA scores every scene for intensity and stakes | Yes Pacing report (its features page) |
| Compares the books of a series | Partial Appearance, marks, voice and event dates, in a check you start | Not on its pages |
| Starting price | Writer plan from $14/mo billed annually; Full reads from the Author plan at $35/mo billed annually; a 14-day free trial, no card, at public launch | Free; Premium $10/mo yearly ($120), $30 monthly or $399 once (prowritingaid.com, October 13, 2026) |
The honest take: both, in that order
Run the continuity read before the line edit. A contradiction found after you have polished the sentence costs the polish; found before, it costs a paragraph. How to self-edit a novel series puts the passes in order, pacing analysis, scene by scene is where the two tools overlap, and StoryHelm vs AutoCrit covers the other editing studio novelists compare.
Questions authors ask
Not for line editing. It replaces the part of a developmental read that checks whether the facts, the clock and the setups of each book agree with themselves, and, in a check you start, whether the books agree on what they record.
No. You write every word yourself, in StoryHelm’s built-in editor or in files you import. Two disclosed features produce text that isn’t your manuscript: Ship Dock drafts pitch material about the book for you to review and edit, and Translation Studio produces machine-generated translated editions of a finished book.
StoryHelm is an AI manuscript-intelligence platform for indie series authors. It reads and analyzes an entire fiction series, catches continuity errors before readers do, and never writes or rewrites the author’s prose. You write every word of your book yourself, in StoryHelm’s built-in editor or in files you import. Two disclosed features produce text that isn’t your manuscript: Ship Dock drafts pitch material about the book (a query letter, synopsis, logline or back-cover blurb) for you to review and edit, and Translation Studio produces machine-generated translated editions of a finished book.
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