ProWritingAid vs Grammarly vs AutoCrit vs Hemingway Editor
A fair UK and global English look at four common self-editing tools indie authors use before (or between) human edits. Plans, report limits, and AI add-ons change — confirm on each official site before you subscribe. None of these replace a skilled developmental, line, or copy editor; they are diagnostic and clarity aids.
| ProWritingAid | Grammarly | AutoCrit | Hemingway Editor | |
|---|---|---|---|---|
| Best fit | Authors who want deep style reports and fiction-friendly checks, including Scrivener integrations | Authors who want ubiquitous grammar/clarity help across browser, docs, and email | Genre-fiction authors who want manuscript diagnostics benchmarked against genre patterns | Authors who want a fast readability/clarity pass (hard sentences, adverbs, passive voice, grade level) |
| Core job | Self-editing suite: style, repetition, pacing-ish reports, and craft-oriented suggestions | Surface grammar, clarity, tone, and correctness across everyday writing | Fiction manuscript analysis: pacing, dialogue, word choice vs genre baselines | Readability highlighter first; optional desktop app; separate AI “Plus” subscription |
| Pricing model | Freemium (limited free reports; subscription and lifetime options — confirm current tiers) | Freemium (free basic checks; Premium/Business subscriptions) | Subscription (fiction-focused plans — confirm current tiers) | Freemium: free web highlighter; desktop ~$19.99 one-time; Hemingway Editor Plus is a separate AI subscription |
| Fiction craft focus | Strong among general writing tools; reports aimed at long-form prose | Weaker for fiction voice — often over-corrects dialect, fragments, and stylistic choices | Strongest fiction-specific diagnostics in this set | Low fiction craft depth; optimises for plain, clear sentences rather than genre craft |
| Grammar depth | Solid style + grammar reporting; not identical to Grammarly’s always-on product surface | Usually the deepest everyday grammar/clarity coverage | More craft analytics than a full grammar suite | Classic app is not a grammar suite; Plus adds AI grammar/rewrites (confirm plan limits) |
| Honest limits | Can overwhelm with report volume; still needs human judgement on voice | Great for typos; risky if you accept every suggestion in dialogue-heavy fiction | Best as a diagnostic pass for genre fiction — not a substitute for developmental editing | Readability-first; will not catch many craft or continuity issues a human editor would |
| UK authors | UK English supported on published plans — confirm dialect settings | UK English available; still review suggestions against your house style | Open internationally; confirm billing currency and genre baselines on signup | Works for UK English prose; grade-level metrics are US-school-oriented — use as a clarity signal, not a UK curriculum score |
Who should choose what?
- Choose ProWritingAid if you want deeper long-form style reports and fiction-oriented checks in one suite, especially if you already draft in Scrivener or similar.
- Choose Grammarly if you want always-on grammar and clarity across browser and desktop, and you will critically review suggestions so fiction voice survives.
- Choose AutoCrit if you write genre fiction and want manuscript diagnostics (pacing, dialogue patterns, word-choice benchmarks) before a human pass.
- Choose Hemingway Editor if you mainly need a readability highlighter to cut wordiness — start free on the web, buy desktop if you want offline, and treat Plus as optional AI rather than the core product.
Using more than one
A common stack is Hemingway or Grammarly for a quick clarity pass, then ProWritingAid or AutoCrit for a deeper manuscript report, then a human editor for developmental and line work. Stacking every paid plan rarely pays for itself — pick the one report you will actually act on.
Aside: SmartEdit Writer
SmartEdit Writer sits adjacent as a free Windows novel app with built-in craft checks (overused words, adverbs, dialogue tags). It is not a fourth column here because it is a drafting app with an editor toolbar, not a cross-platform self-editing SaaS. Pair it if you already write on Windows and want free in-app flags.
Related compares: Atticus vs Vellum vs Reedsy vs FormatReady · Draft2Digital vs PublishDrive vs KDP vs IngramSpark · Kobo vs Apple vs B&N vs Google Play · BookFunnel vs StoryOrigin vs Prolific Works · Lulu vs IngramSpark vs KDP Print · Publisher Rocket vs KDSpy vs Book Bolt
Tool pages: ProWritingAid · Grammarly · AutoCrit · Hemingway Editor · SmartEdit Writer