ProWritingAid
by Orpheus Technology
Grammar, style, and manuscript-editing assistant for authors and long-form writers
Last reviewed 2026-06-20
ProWritingAid is a grammar checker, style editor, and writing-analysis tool aimed primarily at authors, novelists, and other long-form writers. Beyond standard spelling, grammar, and punctuation checks, it runs 25+ writing reports that surface issues like overused words, passive voice, sentence-length variation, readability, clichés, repeated sentence starts, and dialogue-tag problems, and it offers a paraphrasing (Rephrase) tool and a built-in thesaurus and Word Explorer. More recently it added AI-assisted features: a "Sparks" generative writing helper for getting unstuck, a virtual beta reader and chapter critique, and manuscript-level analysis such as plot and marketability assessment. Almost everything is delivered as suggestions and reports a writer reviews and applies, so in practice it is a copilot and writing-feedback assistant rather than an agent that acts on its own. It works inside Microsoft Word, Google Docs, Scrivener, and the browser, and the company reports it helps millions of writers.
What it can do
Grammar, spelling, and punctuation checking
CopilotChecks text for grammar, spelling, and punctuation errors and surfaces inline suggestions the writer accepts or rejects.
sourceStyle and writing reports
AssistantRuns 25+ analysis reports that flag issues like overused words, passive voice, sentence-length variation, readability, clichés, repeated sentence starts, and dialogue tags, with explanations the writer acts on.
sourceRephrase (paraphrasing) tool
CopilotSuggests alternative phrasings for selected sentences to improve clarity or vary wording; the writer chooses whether to apply each rewrite.
sourceSparks AI writing assistance
AssistantGenerative AI feature that helps writers get unstuck and continue or expand a passage on demand; output is produced for the writer to edit and accept.
sourceManuscript analysis and critique
AssistantProvides chapter critique, a virtual beta reader, and manuscript-level analysis (including plot and marketability assessment) that returns feedback the writer reviews.
source
Strengths
- +Deep, author-focused editing reports (pacing, dialogue, sentence variety, overused words) that go well beyond basic grammar checking
- +Works inside the tools writers actually use, including Microsoft Word, Google Docs, Scrivener, and the browser
- +Lifetime license option and relatively low annual pricing compared to subscription-only rivals
Limitations
- −Core behavior is suggestions and reports, not autonomous action; the user applies every change
- −Best value features (unlimited reports, manuscript critique, more Sparks) are gated behind paid tiers
- −Heavier and more report-driven than lightweight grammar checkers, which can be overwhelming for short everyday writing
Overview
ProWritingAid is a grammar checker, style editor, and writing-analysis tool aimed primarily at authors, novelists, and long-form writers. It was founded in London in 2013 by Chris Banks (legal name Orpheus Technology) and reports that it helps millions of writers. Beyond standard proofreading, its differentiator is depth of analysis: 25+ reports that examine how your writing is constructed, not just whether it is correct.
What it does
The foundation is real-time grammar, spelling, and punctuation checking surfaced as inline suggestions a writer accepts or rejects (copilot). On top of that sit its writing reports, which flag overused words, passive voice, sentence-length variation, readability scores, clichés, repeated sentence starts, dialogue-tag issues, and more, with explanations meant to teach as well as fix. A Rephrase tool offers alternative phrasings, and a built-in thesaurus and Word Explorer help with word choice. More recent AI features include Sparks (generative help to get unstuck), a virtual beta reader, chapter critique, and manuscript-level analysis such as plot and marketability assessment. All of it returns suggestions and feedback the writer reviews, so ProWritingAid is best described as an assistant and copilot, not an autonomous agent.
Integrations & setup
ProWritingAid runs as a web editor plus integrations into the tools writers use: Microsoft Word, Google Docs, Scrivener, Apple Pages and Notes, and browser extensions for Chrome, Firefox, and Edge, along with apps like Notion, Gmail, and Atticus. There are Mac and Windows desktop apps. No public API or agent protocol (MCP/A2A) is advertised.
Pricing
Freemium. The free plan covers basic grammar, spelling, and punctuation checking with daily caps (limited report runs, Rephrases, and Sparks) and a per-analysis word limit. Premium unlocks unlimited word count, unlimited Rephrases, and the full 25+ reports, starting around $10/month billed annually (roughly $30 month-to-month), with a lifetime license also offered. A Premium Pro tier adds more Sparks, additional chapter critiques, and access to author/editor workshops. Prices displayed on the site are localized, so the exact figure varies by region.
Best for / not for
Best for authors, novelists, and other long-form writers who want deep, teaching-oriented feedback on style, pacing, and structure, especially those working in Scrivener or Word on book-length projects. Less suited to anyone wanting a lightweight everyday grammar checker, an autonomous writing agent, or broad cross-app coverage, where a simpler or more universal tool may fit better.
Alternatives
Grammarly is the broader, more universal grammar and writing assistant; QuillBot focuses on paraphrasing and rewriting; Sudowrite targets AI fiction drafting and brainstorming; Wordtune emphasizes rewriting and rephrasing for clarity and tone.
What people are saying
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FAQ
Is ProWritingAid an AI agent?+
No. ProWritingAid is a writing assistant and copilot. It checks grammar and style, runs analysis reports, paraphrases, and offers AI drafting help (Sparks), but it surfaces suggestions and feedback that the writer reviews and applies rather than acting end-to-end on its own.
How is ProWritingAid different from Grammarly?+
Both check grammar and style, but ProWritingAid leans toward long-form and fiction writers, with 25+ in-depth reports, manuscript and chapter critique, and Scrivener integration. Grammarly is broader and works across more apps and sites with a stronger focus on everyday and business writing.
Does ProWritingAid have a free plan?+
Yes. The free plan covers basic grammar, spelling, and punctuation checking with daily limits on reports, Rephrases, and Sparks and a per-analysis word cap. Premium removes most limits and unlocks the full set of reports.
Sources
- ProWritingAid (official site) · accessed 2026-06-20
- ProWritingAid pricing · accessed 2026-06-20
- About ProWritingAid · accessed 2026-06-20
Last reviewed 2026-06-20