ProWritingAid

ProWritingAid is a self-editing tool built for book-length manuscripts. Rather than correcting errors inline as you type, it generates 25+ targeted reports — covering grammar, style, repetition, clichés, pacing, readability, dialogue tags, and more — designed to be worked through systematically between drafts. The direct Scrivener integration lets authors run analysis without leaving their writing environment.

What You Get

• 25+ writing analysis reports: Each report targets a specific dimension of your manuscript: sticky sentences, overused words, sentence length variation, adverb frequency, passive voice density, consistency, and more. Run individual reports or a full suite.
• Repetition detection: Highlights overused words and phrases across the entire manuscript, not just the paragraph you're editing. Catches blind spots that are impossible to see draft-to-draft.
• Scrivener integration: Analyze chapters or scenes without exporting to a separate file. The plugin works natively inside Scrivener on Mac and Windows.
• Chapter critique: AI generates a summary of a chapter's strengths and weaknesses. Limited to 1 per day on Premium, 3 per day on Premium Pro.
• Lifetime plan: One-time payment eliminates recurring subscription fees — Premium lifetime at $399, Premium Pro at $699.
• Word and Google Docs plugins: For authors not using Scrivener, both offer the same report access within existing workflows.

Who It's For

• Novelists doing deep revision passes: The report structure is designed for focused editing sessions, not passive background checking. Most effective when used between draft completions.
• Budget-focused long-term users: The lifetime plan at $399 breaks even against the annual subscription in roughly 3 years — meaningful for authors planning to self-publish multiple books.
• Scrivener users: The tight native integration is a genuine workflow advantage. No other major editing tool matches it.

Pricing: Free plan limited to 500 words per check and 2 report runs per day. Premium: $30/month, $10/month billed annually ($120/year), or $399 lifetime. Premium Pro (adds live workshops, 50 Sparks/day, and 3 Chapter Critiques/day): $36/month, $12/month annually ($144/year), or $699 lifetime. Annual and lifetime plans include a 3-day money-back guarantee.

Strengths

• Fiction-specific analysis: Reports on dialogue tag variety, pacing variation, and genre-specific clichés that generic grammar tools don't catch. More suited to book manuscripts than Grammarly.
• Habit identification: Running reports across a full manuscript reveals writing patterns — repetitive sentence openers, word frequency spikes, overused phrases — enabling systematic long-term improvement.
• Lifetime pricing: A meaningful differentiator in a market dominated by SaaS subscriptions. For authors publishing consistently, the math favors it.

Limitations

• No mobile app: Analysis requires the desktop browser or Windows/Mac desktop app. No iOS or Android support — a notable gap compared to Grammarly.
• Feedback volume can overwhelm: Running all 25+ reports generates hundreds of suggestions across a full manuscript. Requires discipline to prioritize which reports matter for a given revision stage.
• Not passive: Must actively open ProWritingAid and run a session. Does not work silently in the background during writing the way Grammarly does.
• Free tier is barely functional for manuscripts: The 500-word cap makes meaningful novel-length work impossible without paying.

Alternatives

Grammarly is faster, more passive, and better integrated for day-to-day writing across devices, but lacks ProWritingAid's fiction-specific depth. AutoCrit is a direct competitor for fiction prose analysis at a higher price point. Neither offers a lifetime purchase option.