Grammarly vs ProWritingAid (2026)

Grammar & Basic Corrections

Both tools nail the basics — spelling, punctuation, subject-verb agreement. Grammarly feels slightly snappier, catching errors as you type with minimal lag. ProWritingAid is just as accurate but can feel slower, especially in browser extensions.

For everyday writing — emails, docs, quick content — Grammarly's speed and polish give it a slight edge. But accuracy-wise, they're neck and neck.

Deep Style Analysis

This is where ProWritingAid shines. The 20+ writing reports are genuinely educational: overused words, sentence length variation, readability scores, sticky sentences, pacing. If you want to understand WHY your writing works (or doesn't), ProWritingAid is a writing teacher.

Grammarly's style suggestions are helpful but surface-level. It'll tell you a sentence is wordy; ProWritingAid will show you exactly which words to cut and why.

AI Writing Features

Grammarly's GrammarlyGO is a legitimate AI writing assistant — rewrite paragraphs, adjust tone, generate ideas. It's powered by GPT and feels modern. For quick rewrites or when you're stuck, it's genuinely useful.

ProWritingAid's AI features are more limited. They've added some generative capabilities, but it's not the focus. If AI-powered writing assistance is important, Grammarly wins.

For Fiction Writers

ProWritingAid is the choice for novelists. It integrates with Scrivener, understands that fiction has different rules than business writing, and offers genre-specific analysis. The pacing check and dialogue tag analysis are gold for long-form fiction.

Grammarly often fights with creative writing — flagging intentional fragments or colloquial dialogue as errors. It's built for professional/business writing, not creative work.

The Bottom Line

• Business professionals: Grammarly (speed + integrations)
• Fiction writers: ProWritingAid (Scrivener + genre-aware)
• Students learning to write: ProWritingAid (educational reports)
• Marketers & content creators: Grammarly (AI features + polish)
• Budget-conscious: ProWritingAid ($79/year lifetime deal often available)