Grammarly vs GPTZero vs QuillBot vs ZeroGPT Plus

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

Your tool
Grammarly
vs
Competitor 1
GPTZero
Competitor 2
QuillBot
Competitor 3
ZeroGPT Plus
Compare
4 tools · best value per row highlighted
Your tool Grammarly
grammarly.com
Writing confidence that follows you everywhere
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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
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Competitor QuillBot
quillbot.com
Rephrase until it sounds right
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Competitor ZeroGPT Plus
zerogpt.plus
ZeroGPT Plus can detect if text came from AI with high accuracy
Make main Remove
Traffic estimated monthly website traffic
Monthly visits
49.3Mvisits/mo
11Mvisits/mo
31.4Mvisits/mo
92.5Kvisits/mo
MoM change
▲ 10.8%
—
▼ 8.4%
▼ 14.1%
6-month growth
-22.5%
—
-27.9%
+100.2%
Global rank web
#688
—
#1,318
#383,365
Avg. last 3 months
46.5M
11M
36.7M
85.7K
Bounce rate lower is better
40%
—
46%
38%
Pages / visit
7.8
—
5.5
1.9
Visit duration
4m 41s
—
2m 52s
21s
Traffic sources
● Direct 85% · ● Referral 9%
—
● Direct 76% · ● Referral 22%
● Direct 92% · ● Referral 4%
GrammarlyGPTZeroQuillBotZeroGPT Plus
015.9M31.8M47.7M63.6MGrammarly · 58.8MGrammarly · 54.5MGrammarly · 55.9MGrammarly · 55.7MGrammarly · 63.6MGrammarly · 58.3MGrammarly · 54MGrammarly · 45.8MGrammarly · 44.5MGrammarly · 49.3MGPTZero · 11MQuillBot · 59.8MQuillBot · 47MQuillBot · 42.9MQuillBot · 43.5MQuillBot · 49.6MQuillBot · 48.1MQuillBot · 44.6MQuillBot · 34.3MQuillBot · 31.4MZeroGPT Plus · 107.3KZeroGPT Plus · 132.4KZeroGPT Plus · 53.1KZeroGPT Plus · 45.8KZeroGPT Plus · 46.2KZeroGPT Plus · 34.6KZeroGPT Plus · 24.8KZeroGPT Plus · 56.8KZeroGPT Plus · 107.7KZeroGPT Plus · 92.5K10K100K1M10M100MGrammarly · 58.8MGrammarly · 54.5MGrammarly · 55.9MGrammarly · 55.7MGrammarly · 63.6MGrammarly · 58.3MGrammarly · 54MGrammarly · 45.8MGrammarly · 44.5MGrammarly · 49.3MGPTZero · 11MQuillBot · 59.8MQuillBot · 47MQuillBot · 42.9MQuillBot · 43.5MQuillBot · 49.6MQuillBot · 48.1MQuillBot · 44.6MQuillBot · 34.3MQuillBot · 31.4MZeroGPT Plus · 107.3KZeroGPT Plus · 132.4KZeroGPT Plus · 53.1KZeroGPT Plus · 45.8KZeroGPT Plus · 46.2KZeroGPT Plus · 34.6KZeroGPT Plus · 24.8KZeroGPT Plus · 56.8KZeroGPT Plus · 107.7KZeroGPT Plus · 92.5KNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Freemium
Freemium
Freemium
Freemium
Starting price
$12per month · free tier available
$12.99per month · free tier available
$19.95per month · free tier available
$9.9per month · free tier available
Free tier
Free trial
–
–
–
API access
–
–
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Plans
Free FreePro Custom/moEnterprise Custom/mo
Free FreePremium $12.99/moProfessional $24.99/mo
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Capabilities input → output
Input
Text
DocumentsText
DocumentsImagesText
DocumentsText
Output
Text
DataText
DocumentsImagesSlidesText
Text
Skill level
Beginner-friendly
Beginner-friendly
Beginner-friendly
Beginner-friendly
Categories
AI Detection & SafetyWriting & ContentAI DetectorAI Grammar Checker+4 more
AI Detection & SafetyAI DetectorAI Plagiarism Checker
AI Detection & SafetyWriting & ContentAI DetectorAI Grammar Checker+5 more
AI Detection & SafetyAI DetectorAI Plagiarism CheckerHumanizer AI
Tasks what each tool can do · 2 shared · core   partial
Tasks covered
6
7
9
4
Detection
Plagiarism detection
Grammar checking
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AI authorship detection
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Paraphrasing
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Writing
–
–
Content detection
–
–
Proofreading
–
–
Hallucination detection
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–
–
Summarizing
–
–
–
Content authenticity verification
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–
–
Document summarization
–
–
–
Undetectable content writing
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–
–
Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 1
▲ 1
▲ 2
▲ 0
Saves
0
0
0
0
Reviews
0
0
0
0
Prompts
0
0
0
0
Verified listing
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–
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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.