Grammarly vs Originality.AI vs Turnitin vs QuillBot

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

Your tool
Grammarly
vs
Competitor 1
Originality.AI
Competitor 2
Turnitin
Competitor 3
QuillBot
Compare
4 tools · best value per row highlighted
Your tool Grammarly
grammarly.com
Writing confidence that follows you everywhere
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Competitor Originality.AI
originality.ai
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Competitor 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 QuillBot
quillbot.com
Rephrase until it sounds right
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Traffic estimated monthly website traffic
Monthly visits
49.3Mvisits/mo
1.7Mvisits/mo
—
31.4Mvisits/mo
MoM change
▲ 10.8%
▼ 3.1%
—
▼ 8.4%
6-month growth
-22.5%
-37.9%
—
-27.9%
Global rank web
#688
#37,307
—
#1,318
Avg. last 3 months
46.5M
1.8M
—
36.7M
Bounce rate lower is better
40%
56%
—
46%
Pages / visit
7.8
2.5
—
5.5
Visit duration
4m 41s
2m 31s
—
2m 52s
Traffic sources
● Direct 85% · ● Referral 9%
● Direct 86% · ● Referral 13%
—
● Direct 76% · ● Referral 22%
GrammarlyOriginality.AITurnitinQuillBot
015.9M31.8M47.7M63.6MGrammarly · 58.8MGrammarly · 54.5MGrammarly · 55.9MGrammarly · 55.7MGrammarly · 63.6MGrammarly · 58.3MGrammarly · 54MGrammarly · 45.8MGrammarly · 44.5MGrammarly · 49.3MOriginality.AI · 2.6MOriginality.AI · 2.5MOriginality.AI · 2.2MOriginality.AI · 2.2MOriginality.AI · 2.7MOriginality.AI · 2.5MOriginality.AI · 2.4MOriginality.AI · 1.9MOriginality.AI · 1.7MOriginality.AI · 1.7MQuillBot · 59.8MQuillBot · 47MQuillBot · 42.9MQuillBot · 43.5MQuillBot · 49.6MQuillBot · 48.1MQuillBot · 44.6MQuillBot · 34.3MQuillBot · 31.4M1M10M100MGrammarly · 58.8MGrammarly · 54.5MGrammarly · 55.9MGrammarly · 55.7MGrammarly · 63.6MGrammarly · 58.3MGrammarly · 54MGrammarly · 45.8MGrammarly · 44.5MGrammarly · 49.3MOriginality.AI · 2.6MOriginality.AI · 2.5MOriginality.AI · 2.2MOriginality.AI · 2.2MOriginality.AI · 2.7MOriginality.AI · 2.5MOriginality.AI · 2.4MOriginality.AI · 1.9MOriginality.AI · 1.7MOriginality.AI · 1.7MQuillBot · 59.8MQuillBot · 47MQuillBot · 42.9MQuillBot · 43.5MQuillBot · 49.6MQuillBot · 48.1MQuillBot · 44.6MQuillBot · 34.3MQuillBot · 31.4MNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Freemium
Freemium
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Freemium
Starting price
$12per month · free tier available
$12.95per month · free tier available
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$19.95per month · free tier available
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
Basic FreePro $12.95/moEnterprise $136.58/mo
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Capabilities input → output
Input
Text
Web pagesTextDocuments
TextDocuments
DocumentsImagesText
Output
Text
TextData
Data
DocumentsImagesSlidesText
Skill level
Beginner-friendly
Intermediate
Beginner-friendly
Beginner-friendly
Categories
AI Detection & SafetyWriting & ContentAI DetectorAI Grammar Checker+4 more
AI Detection & SafetyAI DetectorAI Plagiarism Checker
AI Detection & SafetyAI DetectorAI Plagiarism Checker
AI Detection & SafetyWriting & ContentAI DetectorAI Grammar Checker+5 more
Tasks what each tool can do · 2 shared · core   partial
Tasks covered
6
8
8
9
Plagiarism detection
Detection
Proofreading
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Paraphrasing
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Grammar checking
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Writing
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Content authenticity verification
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Content detection
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AI authorship detection
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Exam cheating
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Summarizing
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Academic integrity advising
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Document summarization
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Editorial fact checking
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Exam grading
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Fact checking
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SEO
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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
▲ 0
▲ 0
▲ 2
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.