Terms of use

Last updated 8 November 2026

These Terms of Use (“Terms”) govern your use of the PlagCheck website, applications and API (the “Service”), provided by PlagCheck Ltd (“PlagCheck”, “we”, “us”). Please also read our Privacy Policy and Data Retention Schedule.

1. Acceptance

By creating an account or using the Service, you agree to these Terms. If you accept them on behalf of an organisation, you confirm that you have authority to bind it. If your organisation has a separate written agreement with us, that agreement prevails where it conflicts with these Terms.

2. Eligibility

You must be at least 16 years old to open an individual account. Younger users may use the Service only through a school or institution that has obtained any consent required by law.

3. Accounts

You must provide accurate information and keep your login details and API keys confidential. You are responsible for all activity under your account. Accounts may not be shared. Notify us promptly of any unauthorised use.

4. The Service

The Service compares submitted documents with other sources and reports text similarity, possible AI-generated content and related indicators. We may update or change the Service from time to time. If we withdraw a paid feature, we will give reasonable notice.

5. Your Content

You retain ownership of the documents you submit (“Content”). You grant us a limited, non-exclusive, worldwide licence to store, copy and process your Content solely to provide the Service. If you or your organisation choose to add a document to the repository, we may also use it to check future submissions; its text is not shown to other institutions. We do not sell your Content or use it to train AI models.

You confirm that you have the right to submit your Content and that it does not infringe anyone’s rights or break any law. You may delete your Content at any time, subject to your organisation’s retention settings.

6. Reports

Reports are indicators to support human judgement. A similarity score is not proof of plagiarism, and AI-content results may be inaccurate. You must not rely on a report as the sole basis for any academic, disciplinary, employment or publishing decision.

7. Acceptable Use

You must not:

  • Submit unlawful, infringing or malicious material.
  • Share access to your account or circumvent credits, usage limits or security measures.
  • Copy, scrape, resell or reverse engineer the Service, except as permitted by law.
  • Use the Service to build a competing product or to test ways of evading detection.
  • Interfere with or disrupt the Service or other users.

8. Institutional Accounts

An organisation that provides access to its members is responsible for authorising its users, informing them that their work may be checked, and choosing its settings. For personal information in documents submitted through an organisation, the organisation is the controller and we act as its processor. A data processing agreement is available on request.

9. Fees, Credits and Payment

  • One credit covers one complete check of up to 20,000 words. Longer documents use one credit per additional 20,000 words. Credits used by a failed check are returned.
  • Subscriptions renew automatically each billing period until cancelled. Each period, your balance is topped up to the plan allowance; unused plan credits do not carry over. Purchased credit packs do not expire while your account is open.
  • Prices are shown at checkout and exclude applicable taxes, which are added where required.
  • We will give at least 30 days’ notice of any price change to your subscription.
  • You may cancel at any time; access continues until the end of the paid period.
  • Fees are non-refundable except where required by law.
  • Payments are processed by third-party payment providers. We do not store full card details.

10. Intellectual Property

The Service, including its software, design and reports, and the PlagCheck name and logo are owned by us or our licensors. No rights are granted except as set out in these Terms.

11. Copyright Complaints

If you believe material on the Service infringes your copyright, email support@origlots.com with details of the work, the material concerned and your contact information. We will review and respond to valid notices.

12. Suspension and Termination

You may close your account at any time. We may suspend or terminate your access if you breach these Terms, if required by law, or to protect the Service or other users. If we terminate a paid account without cause, we will refund any prepaid fees for the unused period.

13. Disclaimer

To the extent permitted by law, the Service is provided “as is” and “as available”. We do not warrant that the Service will detect every matching source or AI-generated passage, or that it will be uninterrupted or error-free.

14. Limitation of Liability

To the extent permitted by law, we are not liable for any indirect, incidental or consequential loss, or for decisions made on the basis of a report. Our total liability for all claims in any 12-month period is limited to the greater of the fees you paid us in that period and US$100. Nothing in these Terms limits liability that cannot be limited by law.

15. Indemnity

If you use the Service for business or institutional purposes, you agree to indemnify us against claims arising from your Content or your breach of these Terms.

16. Consumer Rights

Nothing in these Terms affects rights you have as a consumer under applicable law that cannot be excluded.

17. Changes to These Terms

We may update these Terms from time to time. We will notify you of material changes in advance and may ask you to accept the updated Terms. If you do not agree, you may stop using the Service.

18. Governing Law

These Terms are governed by the laws of the jurisdiction in which PlagCheck Ltd is established, and its courts have jurisdiction. If you are a consumer, you may also have the right to bring proceedings where you live.

19. General

If any provision of these Terms is unenforceable, the rest remains in effect. A failure to enforce a right is not a waiver. You may not assign these Terms without our consent; we may assign them to a successor of the Service.

20. Contact