Grammarly vs QuillBot vs Originality.AI vs StealthGPT

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

Your tool
Grammarly
vs
Competitor 1
QuillBot
Competitor 2
Originality.AI
Competitor 3
StealthGPT
Compare
4 tools · best value per row highlighted
Your tool Grammarly
grammarly.com
Writing confidence that follows you everywhere
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Competitor QuillBot
quillbot.com
Rephrase until it sounds right
Make main Remove
Competitor Originality.AI
originality.ai
Make main Remove
Competitor StealthGPT
stealthgpt.ai
StealthGPT is an AI humanizer and writing assistant that rewrites generated text so it reads naturally and avoids detector flags.
Make main Remove
Traffic estimated monthly website traffic
Monthly visits
49.3Mvisits/mo
31.4Mvisits/mo
1.7Mvisits/mo
—
MoM change
▲ 10.8%
▼ 8.4%
▼ 3.1%
—
6-month growth
-22.5%
-27.9%
-37.9%
—
Global rank web
#688
#1,318
#37,307
—
Avg. last 3 months
46.5M
36.7M
1.8M
—
Bounce rate lower is better
40%
46%
56%
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Pages / visit
7.8
5.5
2.5
—
Visit duration
4m 41s
2m 52s
2m 31s
—
Traffic sources
● Direct 85% · ● Referral 9%
● Direct 76% · ● Referral 22%
● Direct 86% · ● Referral 13%
—
GrammarlyQuillBotOriginality.AIStealthGPT
015.9M31.8M47.7M63.6MGrammarly · 58.8MGrammarly · 54.5MGrammarly · 55.9MGrammarly · 55.7MGrammarly · 63.6MGrammarly · 58.3MGrammarly · 54MGrammarly · 45.8MGrammarly · 44.5MGrammarly · 49.3MQuillBot · 59.8MQuillBot · 47MQuillBot · 42.9MQuillBot · 43.5MQuillBot · 49.6MQuillBot · 48.1MQuillBot · 44.6MQuillBot · 34.3MQuillBot · 31.4MOriginality.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 · 49.3MQuillBot · 59.8MQuillBot · 47MQuillBot · 42.9MQuillBot · 43.5MQuillBot · 49.6MQuillBot · 48.1MQuillBot · 44.6MQuillBot · 34.3MQuillBot · 31.4MOriginality.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
Freemium
Freemium
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Starting price
$12per month · free tier available
$19.95per month · free tier available
$12.95per month · free tier available
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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
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Basic FreePro $12.95/moEnterprise $136.58/mo
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Capabilities input → output
Input
Text
DocumentsImagesText
DocumentsTextWeb pages
Text
Output
Text
DocumentsImagesSlidesText
DataText
Text
Skill level
Beginner-friendly
Beginner-friendly
Intermediate
Beginner-friendly
Categories
AI Detection & SafetyWriting & ContentAI DetectorAI Grammar Checker+4 more
AI Detection & SafetyWriting & ContentAI DetectorAI Grammar Checker+5 more
AI Detection & SafetyAI DetectorAI Plagiarism Checker
AI Detection & SafetyAI DetectorHumanizer AI
Tasks what each tool can do · 0 shared · core   partial
Tasks covered
6
9
8
0
Plagiarism detection
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Detection
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Proofreading
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Paraphrasing
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–
Grammar checking
–
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Writing
–
–
Content authenticity verification
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–
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Content detection
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–
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Summarizing
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–
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Document summarization
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–
–
Editorial fact checking
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–
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Fact checking
–
–
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SEO
–
–
–
Undetectable content writing
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–
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Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 1
▲ 2
▲ 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.