kitio.aiUndetectable AI vs WriteHuman
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Undetectable AI has the lower starting price: about $10 a month, against $20 for WriteHuman.
AI humanizer and detector that rewrites text to sound more natural
Freemium · $9.99/moAt a glance
Best for
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- AI humanizer
- Multi-detector check
- Readability settings
- Paraphraser
- Chrome extension
- AI humanizer
- Tone options
- Built-in AI detector
- Word limits by plan
- API
| Feature | Undetectable AI | WriteHuman |
|---|---|---|
| Best for | AI humanizer and detector that rewrites text to sound more natural | AI humanizer that rewrites AI drafts into a more natural voice |
| Category | Writing | Writing |
| Pricing model | Freemium | Freemium |
| Starting price | $9.99/mo | $20/mo |
| Free plan | Yes | Yes |
| Made by | Undetectable AI | WriteHuman |
| Based in | United States | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Both offer: AI humanizer.
Pricing compared
Undetectable AI has the lower starting price: about $10 a month, against $20 for WriteHuman.
Free plan
Cheapest paid plan
Top plan
Free trial
5 plans
10K words
$9.99/mo
- 10K words per month
- AI humanizer and detector
- Unlimited AI detecting
20K words
$19/mo
- 20K words per month
- All humanizer features
35K words
$31/mo
- 35K words per month
- All humanizer features
50K words
$42.50/mo
- 50K words per month
- All features from other plans
Business
Custom
- Non-expiring credits
- White labeling
- Priority support
4 plans
Free
Free
- 3 humanizer requests/mo
- Up to 250 words per request
- 10 detection checks/mo
Basic
$20/mo
- 80 requests/mo
- Up to 600 words per request
- Enhanced model
Pro
$29/mo
- 200 requests/mo
- Up to 1,200 words per request
- Priority support
Ultra
$59/mo
- Unlimited requests
- Up to 3,000 words per request
- MCP access (1,000/mo)
Prices in USD, checked Oct 28, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
Undetectable AI
- Detector and humanizer in one place
- Readability controls
- Free detector checks
- Rewrites can lose nuance
- Using it to evade school rules breaks policies
WriteHuman
- Simple one-box workflow
- Built-in detector check
- Several tone settings
- Free plan allows very few requests
- Output still needs a human edit
Which one should you choose?
Choose Undetectable AI if you want:
- Detector and humanizer in one place
- Readability controls
- Free detector checks
Watch out: rewrites can lose nuance.
Choose WriteHuman if you want:
- Simple one-box workflow
- Built-in detector check
- Several tone settings
Watch out: free plan allows very few requests.
Undetectable AI vs WriteHuman FAQ
What is the difference between Undetectable AI and WriteHuman?
Undetectable AI: AI humanizer and detector that rewrites text to sound more natural. WriteHuman: AI humanizer that rewrites AI drafts into a more natural voice. Both are writing tools.
Is Undetectable AI or WriteHuman cheaper?
Undetectable AI has the lower starting price: about $10 a month, against $20 for WriteHuman.
Do Undetectable AI and WriteHuman have free plans?
Undetectable AI: Yes. WriteHuman: Yes.
Who makes Undetectable AI?
Undetectable AI is made by Undetectable AI, based in United States.
Who makes WriteHuman?
WriteHuman is made by WriteHuman.
Which should I choose, Undetectable AI or WriteHuman?
Choose Undetectable AI if you value detector and humanizer in one place and readability controls. Choose WriteHuman if you value simple one-box workflow and built-in detector check.