kitio.aiTurnitin vs Undetectable AI
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Turnitin starts at See pricing page and Undetectable AI starts at $9.99/mo. 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
- Similarity Report
- AI writing indicator
- LMS integrations
- Feedback Studio
- Draft process insights
- AI humanizer
- Multi-detector check
- Readability settings
- Paraphraser
- Chrome extension
| Feature | Turnitin | Undetectable AI |
|---|---|---|
| Best for | Plagiarism and AI writing detection used by schools and universities | AI humanizer and detector that rewrites text to sound more natural |
| Category | Writing | Writing |
| Pricing model | Paid | Freemium |
| Starting price | See pricing page | $9.99/mo |
| Free plan | No | Yes |
| Made by | Turnitin | Undetectable AI |
| Based in | United States | United States |
| Rating | No ratings yet | No ratings yet |
| Key features |
|
|
Pricing compared
Turnitin starts at See pricing page and Undetectable AI starts at $9.99/mo. 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
Turnitin
- Very large comparison database
- Built into most LMSs
- Trusted by institutions
- Not available to individuals
- AI scores can be contested
- Pricing only through institutions
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
Which one should you choose?
Choose Turnitin if you want:
- Very large comparison database
- Built into most LMSs
- Trusted by institutions
Watch out: not available to individuals.
Choose Undetectable AI if you want:
- Detector and humanizer in one place
- Readability controls
- Free detector checks
Watch out: rewrites can lose nuance.
Turnitin vs Undetectable AI FAQ
What is the difference between Turnitin and Undetectable AI?
Turnitin: Plagiarism and AI writing detection used by schools and universities. Undetectable AI: AI humanizer and detector that rewrites text to sound more natural. Both are writing tools.
Is Turnitin or Undetectable AI cheaper?
Turnitin starts at See pricing page and Undetectable AI starts at $9.99/mo. Check both pricing pages for current plans.
Do Turnitin and Undetectable AI have free plans?
Turnitin: No. Undetectable AI: Yes.
Who makes Turnitin?
Turnitin is made by Turnitin, based in United States.
Who makes Undetectable AI?
Undetectable AI is made by Undetectable AI, based in United States.
Which should I choose, Turnitin or Undetectable AI?
Choose Turnitin if you value very large comparison database and built into most lmss. Choose Undetectable AI if you value detector and humanizer in one place and readability controls.