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.

ProWritingAidGrammarlyAutoCritHemingway Editor
Best fitAuthors who want deep style reports and fiction-friendly checks, including Scrivener integrationsAuthors who want ubiquitous grammar/clarity help across browser, docs, and emailGenre-fiction authors who want manuscript diagnostics benchmarked against genre patternsAuthors who want a fast readability/clarity pass (hard sentences, adverbs, passive voice, grade level)
Core jobSelf-editing suite: style, repetition, pacing-ish reports, and craft-oriented suggestionsSurface grammar, clarity, tone, and correctness across everyday writingFiction manuscript analysis: pacing, dialogue, word choice vs genre baselinesReadability highlighter first; optional desktop app; separate AI “Plus” subscription
Pricing modelFreemium (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 focusStrong among general writing tools; reports aimed at long-form proseWeaker for fiction voice — often over-corrects dialect, fragments, and stylistic choicesStrongest fiction-specific diagnostics in this setLow fiction craft depth; optimises for plain, clear sentences rather than genre craft
Grammar depthSolid style + grammar reporting; not identical to Grammarly’s always-on product surfaceUsually the deepest everyday grammar/clarity coverageMore craft analytics than a full grammar suiteClassic app is not a grammar suite; Plus adds AI grammar/rewrites (confirm plan limits)
Honest limitsCan overwhelm with report volume; still needs human judgement on voiceGreat for typos; risky if you accept every suggestion in dialogue-heavy fictionBest as a diagnostic pass for genre fiction — not a substitute for developmental editingReadability-first; will not catch many craft or continuity issues a human editor would
UK authorsUK English supported on published plans — confirm dialect settingsUK English available; still review suggestions against your house styleOpen internationally; confirm billing currency and genre baselines on signupWorks 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?

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.

This page is editorial, not sponsored. See how we monetise. We do not invent plan prices or claim any tool replaces a human editor — verify features and pricing before you buy.

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