Grammarly vs QuillBot (2026)
We tested both. Here is the honest comparison.
Grammarly
71/100
Free
Top PickVS
QuillBot
65/100
Free / $10/mo
GoodScore Breakdown
Category
Grammarly
QuillBot
Output Quality
70
▲ Wins65
▼ LosesSpeed
78
▲ Wins70
▼ LosesEase of Use
85
▲ Wins76
▼ LosesValue for Money
65
▼ Loses68
▲ WinsSEO / Accuracy
55
▲ Wins45
▼ LosesOverall
71
65
Pricing
Starting Price
Free
Free / $10/mo
Real Price
Free / $30/mo
$10/mo
Price Note
Pro plan $12/mo
Premium — unlimited paraphrase
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
QuillBot
Best For
✓ Students and academics
✓ Non-native English writers
✓ Editing and rewriting drafts
Not For
✗ Content creation from scratch
✗ Long-form blog posts
✗ SEO-first content
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
QuillBot
+ 7 paraphrase modes including Formal, Creative, Academic
+ Summarizer cuts long docs to key points in seconds
+ Chrome extension works in Google Docs, Gmail, everywhere
+ Grammar checker catches what Grammarly misses
+ Free plan genuinely usable for light work
− Not a content generator — needs existing text to work
− Premium features gated behind paywall aggressively
− Paraphrases can lose nuance in technical content