Grammarly vs ProWritingAid (2026)
We tested both. Here is the honest comparison.
Grammarly
71/100
Free
Top PickVS
ProWritingAid
74/100
$10/mo
Top PickScore Breakdown
Category
Grammarly
ProWritingAid
Output Quality
70
▼ Loses82
▲ WinsSpeed
78
▲ Wins74
▼ LosesEase of Use
85
▲ Wins82
▼ LosesValue for Money
65
▼ Loses85
▲ WinsSEO / Accuracy
55
Tie55
TieOverall
71
74
Pricing
Starting Price
Free
$10/mo
Real Price
Free / $30/mo
$10/mo
Price Note
Pro plan $12/mo
Lifetime plan $399 one-time — best value in the category
Grammarly
Best For
✓ Every professional writer as a baseline tool
✓ Non-native English speakers
✓ Teams needing consistent tone across writers
Not For
✗ Standalone content generation
✗ SEO writing optimization
ProWritingAid
Best For
✓ Fiction writers and novelists
✓ Long-form bloggers and journalists
✓ Academics and technical writers
Not For
✗ Quick social media copy
✗ SEO-focused content teams needing keyword integration
Pros & Cons
Grammarly
+ Works everywhere: Gmail, Docs, Notion, Slack, browser
+ Tone detection tells you how your writing sounds to others
+ Plagiarism checker covers 16B+ web pages
+ Generative AI rewrites weak sentences with one click
+ 30M+ daily active users — team adoption is frictionless
− Not a content creation tool — it corrects, not writes
− Free tier lacks advanced suggestions and plagiarism
− Expensive at $30/mo for what is ultimately a grammar tool
ProWritingAid
+ 20+ report types: grammar, style, pacing, clichés, sticky sentences
+ Native integrations: Google Docs, MS Word, Scrivener, Chrome
+ Lifetime plan ($399) is the best one-time deal in this category
+ Finds issues Grammarly misses — redundant phrases, passive overuse, vague wording
+ Consistency checker flags character name/timeline errors in long documents
− Interface feels dated compared to Grammarly or Hemingway
− Report system is powerful but requires learning investment
− Not built for SEO — zero keyword or ranking features