kitio.aiUndetectable AI vs Walter Writes AI
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Undetectable AI starts at $9.99/mo and Walter Writes AI starts at See pricing page. Check both pricing pages for current plans.
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
- AI text detector
- Paraphraser with tone control
- Grammar and plagiarism checks
- Chrome extension
- Developer API and MCP
| Feature | Undetectable AI | Walter Writes AI |
|---|---|---|
| Best for | AI humanizer and detector that rewrites text to sound more natural | AI humanizer and detector with paraphrasing and grammar tools |
| Category | Writing | Writing |
| Pricing model | Freemium | Free trial |
| Starting price | $9.99/mo | See pricing page |
| Free plan | Yes | No, trial available |
| Made by | Undetectable AI | Walter Writes AI |
| Based in | United States | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Both offer: AI humanizer, Chrome extension.
Pricing compared
Undetectable AI starts at $9.99/mo and Walter Writes AI starts at See pricing page. Check both pricing pages for current plans.
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
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
Walter Writes AI
- Humanizer and detector in one account
- API covers text, image and voice detection
- Works inside Claude and Codex via MCP
- Pricing not listed on the homepage
- Humanizing can change meaning or tone
- Using it to pass off AI work may break school rules
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 Walter Writes AI if you want:
- Humanizer and detector in one account
- API covers text, image and voice detection
- Works inside Claude and Codex via MCP
Watch out: pricing not listed on the homepage.
Undetectable AI vs Walter Writes AI FAQ
What is the difference between Undetectable AI and Walter Writes AI?
Undetectable AI: AI humanizer and detector that rewrites text to sound more natural. Walter Writes AI: AI humanizer and detector with paraphrasing and grammar tools. Both are writing tools.
Is Undetectable AI or Walter Writes AI cheaper?
Undetectable AI starts at $9.99/mo and Walter Writes AI starts at See pricing page. Check both pricing pages for current plans.
Do Undetectable AI and Walter Writes AI have free plans?
Undetectable AI: Yes. Walter Writes AI: No, trial available.
Who makes Undetectable AI?
Undetectable AI is made by Undetectable AI, based in United States.
Who makes Walter Writes AI?
Walter Writes AI is made by Walter Writes AI.
Which should I choose, Undetectable AI or Walter Writes AI?
Choose Undetectable AI if you value detector and humanizer in one place and readability controls. Choose Walter Writes AI if you value humanizer and detector in one account and api covers text, image and voice detection.