Grammarly vs QuillBot vs GPTZero

Which one fits you in 2026? Traffic, pricing, input → output, tasks and community side by side.

Your tool
Grammarly
vs
Competitor 1
QuillBot
Competitor 2
GPTZero
Competitor 3
Suggested competitors for Grammarly: Wordtune86% Originality.AI86% Undetectable AI85% Copyleaks85% ProWritingAid84% Scribbr Plagiarism Checker83% LanguageTool82% StealthGPT82%
Compare
3 tools · best value per row highlighted
Your tool Grammarly
grammarly.com
Writing confidence that follows you everywhere
Remove
Competitor QuillBot
quillbot.com
Rephrase until it sounds right
Make main Remove
Competitor GPTZero
gptzero.me
Used by over 10 million teachers and students across more than 100 countries, GPTZero detects AI-generated text across major language models while providing a suite of writing verification tools
Make main Remove
Traffic estimated monthly website traffic
Monthly visits
49.3Mvisits/mo
31.4Mvisits/mo
11Mvisits/mo
MoM change
▲ 10.8%
▼ 8.4%
—
6-month growth
-22.5%
-27.9%
—
Global rank web
#688
#1,318
—
Avg. last 3 months
46.5M
36.7M
11M
Bounce rate lower is better
40%
46%
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Pages / visit
7.8
5.5
—
Visit duration
4m 41s
2m 52s
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Traffic sources
● Direct 85% · ● Referral 9%
● Direct 76% · ● Referral 22%
—
GrammarlyQuillBotGPTZero
015.9M31.8M47.7M63.6MGrammarly · 58.8MGrammarly · 54.5MGrammarly · 55.9MGrammarly · 55.7MGrammarly · 63.6MGrammarly · 58.3MGrammarly · 54MGrammarly · 45.8MGrammarly · 44.5MGrammarly · 49.3MQuillBot · 59.8MQuillBot · 47MQuillBot · 42.9MQuillBot · 43.5MQuillBot · 49.6MQuillBot · 48.1MQuillBot · 44.6MQuillBot · 34.3MQuillBot · 31.4MGPTZero · 11M10M100MGrammarly · 58.8MGrammarly · 54.5MGrammarly · 55.9MGrammarly · 55.7MGrammarly · 63.6MGrammarly · 58.3MGrammarly · 54MGrammarly · 45.8MGrammarly · 44.5MGrammarly · 49.3MQuillBot · 59.8MQuillBot · 47MQuillBot · 42.9MQuillBot · 43.5MQuillBot · 49.6MQuillBot · 48.1MQuillBot · 44.6MQuillBot · 34.3MQuillBot · 31.4MGPTZero · 11MNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Freemium
Freemium
Freemium
Starting price
$12per month · free tier available
$19.95per month · free tier available
$12.99per month · free tier available
Free tier
Free trial
–
–
API access
–
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Plans
Free FreePro Custom/moEnterprise Custom/mo
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Free FreePremium $12.99/moProfessional $24.99/mo
Capabilities input → output
Input
Text
DocumentsImagesText
DocumentsText
Output
Text
DocumentsImagesSlidesText
DataText
Skill level
Beginner-friendly
Beginner-friendly
Beginner-friendly
Categories
AI Detection & SafetyWriting & ContentAI DetectorAI Grammar Checker+4 more
AI Detection & SafetyWriting & ContentAI DetectorAI Grammar Checker+5 more
AI Detection & SafetyAI DetectorAI Plagiarism Checker
Tasks what each tool can do · 3 shared · core   partial
Tasks covered
6
9
7
Plagiarism detection
Detection
Grammar checking
Paraphrasing
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Writing
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Proofreading
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AI authorship detection
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–
Content detection
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Hallucination detection
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Summarizing
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–
Content authenticity verification
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Document summarization
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Undetectable content writing
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–
Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 1
▲ 2
▲ 1
Saves
0
0
0
Reviews
0
0
0
Prompts
0
0
0
Verified listing
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Traffic figures are third-party estimates for the tool's own domain; tools sharing a domain with a bigger product are not counted. Pricing is captured from each tool's site and may lag.