Terms of Service

Last updated: October 16, 2026

1. Acceptance of Terms

By accessing or using Kleksa ("the Service"), you agree to be bound by these Terms of Service. If you do not agree to these terms, please do not use the Service.

2. Description of Service

Kleksa is an online service for preparing for school-leaving and entrance exams. It offers the exam authorities' past papers, mock tests and practice tasks of our own, a trainer, study notes and an AI tutor. Answers to tasks with an answer key are checked at once; open answers are marked by an AI model against the official marking criteria, or by you yourself where the Service says so. The Service is independent: it is not run by, affiliated with or endorsed by any exam authority or ministry of education.

3. Account Registration

You can sit a free test without an account. To keep your results, use the trainer or the AI tutor, or buy access, you need an account with a valid email address. You are responsible for keeping your account credentials confidential and for all activity under your account. If you are under 18, or under the age at which you may accept these Terms in your country, you may use the Service only with the consent of a parent or legal guardian, and purchases must be made by them.

4. Acceptable Use

You agree to use the Service only for lawful purposes and for your own exam preparation. You may not:

  • Copy, publish or resell the Service's tasks, answer keys, explanations or study notes
  • Use automated systems to access, scrape or download the Service's content
  • Attempt to reverse-engineer, decompile, disassemble or disrupt the Service
  • Use the AI marking or the AI tutor for anything other than your exam preparation, or send them unlawful or abusive content
  • Share your account, or create several accounts to get more free use

5. Your Answers & Privacy

Your answers, the photos and drawings of handwritten answers you send, and your messages to the AI tutor and to our support team are used only to provide the Service: to mark your answers, show your results and progress, and answer your questions. Open answers, handwritten answers and messages to the AI tutor are sent to our AI provider for processing. We do not share your answers with other users. For details, see our Privacy Policy.

6. Purchases & Payments

Full access is sold per subject: as a one-off pass that does not expire, or as a monthly plan that renews until you cancel it. Each subject is priced in the currency of its exam's country. All payments are processed securely by Stripe. By making a purchase, you agree to the price and conditions shown at checkout. A pass bought before you have an account is attached to the account you create or sign in to in the same browser, or through the link we email to the address you paid with.

7. Free Access

Every subject has a free part: at least one full test with your score, the study notes, and a limited number of trainer tasks, AI tutor replies and AI-marked open answers. The current limits are shown on each subject's page and may change. Creating several accounts to get more free use may result in their suspension.

8. Accuracy Disclaimer

Kleksa is a study aid. Our tasks, answer keys, explanations and study notes are prepared with care but may contain mistakes, and AI marking of an open answer may differ from an examiner's. Scores and grades shown on the Service are estimates for practice, not official results, and do not guarantee any result in the real exam. Always check the rules of your exam with the authority that sets it. We are not responsible for decisions made on the basis of results shown on the Service.

9. Intellectual Property

Past papers, their answer keys and their marking schemes belong to the exam authorities that published them and are reproduced with attribution, on the terms on which those authorities make them available. All other content, features and functionality of the Service — its tasks, explanations, study notes, software and design — are owned by Kleksa and are protected by copyright and other intellectual property laws. You keep all rights to the answers and texts you write.

10. Limitation of Liability

To the maximum extent permitted by law, Kleksa shall not be liable for any indirect, incidental, special, consequential, or punitive damages arising out of or relating to your use of the Service. Nothing in these Terms limits the rights you have under the consumer protection law of your country.

11. Termination

We reserve the right to suspend or terminate your account if you violate these Terms. You may delete your account at any time in your account settings. When an account is deleted, its results and other personal data are deleted as described in our Privacy Policy.

12. Changes to Terms

We may update these Terms from time to time. Continued use of the Service after changes constitutes acceptance of the new Terms. We will notify registered users of significant changes by email.

13. Governing Law

These Terms are governed by applicable law. Any disputes arising from the use of the Service will be resolved in the courts of the applicable jurisdiction, without prejudice to the mandatory consumer protection rules of the country where you live.

14. Contact

If you have questions about these Terms, please contact us via our contact page.