Grammarly vs GPTZero vs ZeroGPT vs Scribbr Plagiarism Checker

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
ZeroGPT
Competitor 3
Scribbr Plagiarism Checker
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 ZeroGPT
zerogpt.com
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Competitor Scribbr Plagiarism Checker
scribbr.com
Scribbr Plagiarism Checker compares a document with a database of 99 billion web pages and 8 million publications and shows where the text matches existing sources.
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Traffic estimated monthly website traffic
Monthly visits
49.3Mvisits/mo
11Mvisits/mo
20.5Mvisits/mo
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MoM change
▲ 10.8%
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▲ 5.1%
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6-month growth
-22.5%
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-29.5%
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Global rank web
#688
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#3,675
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Avg. last 3 months
46.5M
11M
20.5M
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Bounce rate lower is better
40%
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60%
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Pages / visit
7.8
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2.2
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Visit duration
4m 41s
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2m 53s
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Traffic sources
● Direct 85% · ● Referral 9%
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● Direct 90% · ● Referral 9%
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GrammarlyGPTZeroZeroGPTScribbr Plagiarism Checker
015.9M31.8M47.7M63.6MGrammarly · 58.8MGrammarly · 54.5MGrammarly · 55.9MGrammarly · 55.7MGrammarly · 63.6MGrammarly · 58.3MGrammarly · 54MGrammarly · 45.8MGrammarly · 44.5MGrammarly · 49.3MGPTZero · 11MZeroGPT · 29.3MZeroGPT · 23.5MZeroGPT · 20.6MZeroGPT · 23.3MZeroGPT · 29.1MZeroGPT · 28.2MZeroGPT · 26.3MZeroGPT · 21.4MZeroGPT · 19.5MZeroGPT · 20.5M10M100MGrammarly · 58.8MGrammarly · 54.5MGrammarly · 55.9MGrammarly · 55.7MGrammarly · 63.6MGrammarly · 58.3MGrammarly · 54MGrammarly · 45.8MGrammarly · 44.5MGrammarly · 49.3MGPTZero · 11MZeroGPT · 29.3MZeroGPT · 23.5MZeroGPT · 20.6MZeroGPT · 23.3MZeroGPT · 29.1MZeroGPT · 28.2MZeroGPT · 26.3MZeroGPT · 21.4MZeroGPT · 19.5MZeroGPT · 20.5MNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Freemium
Freemium
Paid
Free
Starting price
$12per month · free tier available
$12.99per month · free tier available
$7.99per month
Free
Free tier
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Free trial
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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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Free check Free
Capabilities input → output
Input
Text
DocumentsText
DocumentsImagesTextVideo
DocumentsText
Output
Text
DataText
Text
Documents
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 & SafetyAI DetectorAI Image DetectorAI Plagiarism Checker+1 more
AI Detection & SafetyWriting & ContentAI DetectorAI Grammar Checker+1 more
Tasks what each tool can do · 2 shared · core   partial
Tasks covered
6
7
2
5
Plagiarism detection
Detection
Grammar checking
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AI authorship detection
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Paraphrasing
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Writing
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Content detection
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Hallucination detection
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Proofreading
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Academic citation
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Content authenticity verification
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Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 1
▲ 1
▲ 0
▲ 0
Saves
0
0
0
0
Reviews
0
0
0
0
Prompts
0
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.