kitio.aiPlagiarismCheck.org vs OmniDetect
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. PlagiarismCheck.org starts at See pricing page and OmniDetect starts at $9.99 one-time. Check both pricing pages for current plans.
At a glance
Best for
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Plagiarism checker
- AI content detector
- LMS integrations
- Google Docs add-on
- Plagiarism check API
- Essay grader
- Passage-level AI scoring
- Fix guidance and re-check
- File and URL scanning
- Writer and text type settings
- Published accuracy data
| Feature | PlagiarismCheck.org | OmniDetect |
|---|---|---|
| Best for | Plagiarism checker and AI detector for schools, students and businesses | AI text detector that flags passages and suggests what to fix |
| Category | Writing | Writing |
| Pricing model | Freemium | Freemium |
| Starting price | See pricing page | $9.99 one-time |
| Free plan | Yes | Yes |
| Made by | PlagiarismCheck.org | OmniDetect |
| Based in | – | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
PlagiarismCheck.org starts at See pricing page and OmniDetect starts at $9.99 one-time. Check both pricing pages for current plans.
Free plan
Cheapest paid plan
Top plan
Free trial
2 plans
Free preview
Free
- Up to 10,000 characters accepted
- First 2,000 characters analyzed
7-Day Pass
$9.99 one-time
- Full checker report
- Passage-level fix guidance
- No auto-renewal
Prices in USD, checked Oct 29, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
PlagiarismCheck.org
- Integrates with seven major LMS platforms
- Checks for both plagiarism and AI text
- API for platforms and businesses
- Free check for individuals
- Plan prices not shown in the evidence
- AI detection can produce false positives
- Extra writing tools are fairly basic
OmniDetect
- Shows evidence, not just a score
- No subscription or auto-renewal
- Free preview without signup
- Free preview reads only 2,000 characters
- Paid pass lasts only seven days
- Detection is never fully reliable
Which one should you choose?
Choose PlagiarismCheck.org if you want:
- Integrates with seven major LMS platforms
- Checks for both plagiarism and AI text
- API for platforms and businesses
Watch out: plan prices not shown in the evidence.
Choose OmniDetect if you want:
- Shows evidence, not just a score
- No subscription or auto-renewal
- Free preview without signup
Watch out: free preview reads only 2,000 characters.
PlagiarismCheck.org vs OmniDetect FAQ
What is the difference between PlagiarismCheck.org and OmniDetect?
PlagiarismCheck.org: Plagiarism checker and AI detector for schools, students and businesses. OmniDetect: AI text detector that flags passages and suggests what to fix. Both are writing tools.
Is PlagiarismCheck.org or OmniDetect cheaper?
PlagiarismCheck.org starts at See pricing page and OmniDetect starts at $9.99 one-time. Check both pricing pages for current plans.
Do PlagiarismCheck.org and OmniDetect have free plans?
PlagiarismCheck.org: Yes. OmniDetect: Yes.
Who makes PlagiarismCheck.org?
PlagiarismCheck.org is made by PlagiarismCheck.org.
Who makes OmniDetect?
OmniDetect is made by OmniDetect.
Which should I choose, PlagiarismCheck.org or OmniDetect?
Choose PlagiarismCheck.org if you value integrates with seven major lms platforms and checks for both plagiarism and ai text. Choose OmniDetect if you value shows evidence, not just a score and no subscription or auto-renewal.