Turnitin vs GPTZero vs Grammarly vs ZeroGPT Plus

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

Your tool
Turnitin
vs
Competitor 1
GPTZero
Competitor 2
Grammarly
Competitor 3
ZeroGPT Plus
Compare
4 tools · best value per row highlighted
Your tool Turnitin
turnitin.com
Turnitin is an academic integrity suite that schools, universities, and research organizations use to verify originality and deal with AI-written text.
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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 Grammarly
grammarly.com
Writing confidence that follows you everywhere
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Competitor ZeroGPT Plus
zerogpt.plus
ZeroGPT Plus can detect if text came from AI with high accuracy
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Traffic estimated monthly website traffic
Monthly visits
—
11Mvisits/mo
49.3Mvisits/mo
92.5Kvisits/mo
MoM change
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▲ 10.8%
▼ 14.1%
6-month growth
—
—
-22.5%
+100.2%
Global rank web
—
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#688
#383,365
Avg. last 3 months
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11M
46.5M
85.7K
Bounce rate lower is better
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—
40%
38%
Pages / visit
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—
7.8
1.9
Visit duration
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—
4m 41s
21s
Traffic sources
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● Direct 85% · ● Referral 9%
● Direct 92% · ● Referral 4%
TurnitinGPTZeroGrammarlyZeroGPT Plus
015.9M31.8M47.7M63.6MGPTZero · 11MGrammarly · 58.8MGrammarly · 54.5MGrammarly · 55.9MGrammarly · 55.7MGrammarly · 63.6MGrammarly · 58.3MGrammarly · 54MGrammarly · 45.8MGrammarly · 44.5MGrammarly · 49.3MZeroGPT 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 · 92.5K10K100K1M10M100MGPTZero · 11MGrammarly · 58.8MGrammarly · 54.5MGrammarly · 55.9MGrammarly · 55.7MGrammarly · 63.6MGrammarly · 58.3MGrammarly · 54MGrammarly · 45.8MGrammarly · 44.5MGrammarly · 49.3MZeroGPT 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
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Freemium
Freemium
Freemium
Starting price
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$12.99per month · free tier available
$12per month · free tier available
$9.9per month · free tier available
Free tier
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Free trial
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API access
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Plans
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Free FreePremium $12.99/moProfessional $24.99/mo
Free FreePro Custom/moEnterprise Custom/mo
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Capabilities input → output
Input
DocumentsText
DocumentsText
Text
DocumentsText
Output
Data
DataText
Text
Text
Skill level
Beginner-friendly
Beginner-friendly
Beginner-friendly
Beginner-friendly
Categories
AI Detection & SafetyAI DetectorAI Plagiarism Checker
AI Detection & SafetyAI DetectorAI Plagiarism Checker
AI Detection & SafetyWriting & ContentAI DetectorAI Grammar Checker+4 more
AI Detection & SafetyAI DetectorAI Plagiarism CheckerHumanizer AI
Tasks what each tool can do · 2 shared · core   partial
Tasks covered
8
7
6
4
Detection
Plagiarism detection
AI authorship detection
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Content detection
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Grammar checking
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Content authenticity verification
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Paraphrasing
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Writing
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Exam cheating
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Hallucination detection
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Proofreading
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Academic integrity advising
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Exam grading
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Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 0
▲ 1
▲ 1
▲ 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.