Grammarly vs Undetectable AI vs Copyleaks vs Originality.AI

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

Your tool
Grammarly
vs
Competitor 1
Undetectable AI
Competitor 2
Copyleaks
Competitor 3
Originality.AI
Compare
4 tools · best value per row highlighted
Your tool Grammarly
grammarly.com
Writing confidence that follows you everywhere
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Competitor Undetectable AI
undetectable.ai
Undetectable AI bundles an AI text detector, an AI humanizer and an AI image detector into one account.
Make main Remove
Competitor Copyleaks
copyleaks.com
Copyleaks is a content authenticity platform that checks whether text was written by AI and whether it copies existing sources.
Make main Remove
Competitor Originality.AI
originality.ai
Make main Remove
Traffic estimated monthly website traffic
Monthly visits
49.3Mvisits/mo
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1.7Mvisits/mo
MoM change
▲ 10.8%
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▼ 3.1%
6-month growth
-22.5%
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-37.9%
Global rank web
#688
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#37,307
Avg. last 3 months
46.5M
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1.8M
Bounce rate lower is better
40%
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56%
Pages / visit
7.8
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2.5
Visit duration
4m 41s
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2m 31s
Traffic sources
● Direct 85% · ● Referral 9%
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● Direct 86% · ● Referral 13%
GrammarlyUndetectable AICopyleaksOriginality.AI
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 · 1.7M1M10M100MGrammarly · 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 · 1.7MNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Freemium
Paid
Paid
Freemium
Starting price
$12per month · free tier available
$5per month
$13.99per month
$12.95per 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
10K words $5/mo20K words $9.50/mo35K words $15.75/mo50K words $21.25/mo+1 more
Personal $13.99/moPro $74.99/moEnterprise CustomEducation Custom
Basic FreePro $12.95/moEnterprise $136.58/mo
Capabilities input → output
Input
Text
TextImagesDocuments
ImagesVideoTextDocumentsCode
Web pagesTextDocuments
Output
Text
TextData
Data
TextData
Skill level
Beginner-friendly
Beginner-friendly
Beginner-friendly
Intermediate
Categories
AI Detection & SafetyWriting & ContentAI DetectorAI Grammar Checker+4 more
AI Detection & SafetyAI DetectorAI Image DetectorHumanizer AI
AI Detection & SafetyAI DetectorAI Image DetectorAI Plagiarism Checker
AI Detection & SafetyAI DetectorAI Plagiarism Checker
Tasks what each tool can do · 1 shared · core   partial
Tasks covered
6
10
10
8
Detection
Plagiarism detection
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Content detection
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AI authorship detection
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Content authenticity verification
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Grammar checking
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Image authenticity analysis
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Proofreading
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Paraphrasing
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Text humanization
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Writing
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Humanizing AI text
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Undetectable content writing
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APIs
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Audio detection
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Content moderation
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Deepfake detection
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Edited image detection
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Editorial fact checking
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Fact checking
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SEO
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Text enhancement
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Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 1
▲ 0
▲ 0
▲ 0
Saves
0
0
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0
Reviews
0
0
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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.