Terms of Use

Last updated: 2026-07-18

These Terms of Use ("Terms") govern your access to and use of the website at tellerio.com ("the Site"), operated by Volker Arndt, trading as CogniCores (the "Operator"). By using the Site you agree to these Terms. If you don't agree, please don't use the Site.

The Tellerio mobile apps for iOS and Android are governed by separate agreements with Apple (Apple's standard end-user licence agreement) and Google (Google Play's terms), not these Terms.

1. Who can use the Site

The Site is intended for adults. By using it, you confirm that you are at least 16 years old (or the age of digital consent in your country, if higher) and have the legal capacity to enter into these Terms. If you are reading or generating stories for a child, you do so under your own responsibility as the adult operating the Site.

2. What the Site does

The Site offers a free in-browser demo of Tellerio's story-generation technology, a blog of sample stories and reading guides, a newsletter signup, and links to the Tellerio mobile apps. The demo is provided as a courtesy preview of the apps; we may change, throttle, suspend, or remove it at any time without notice.

3. Acceptable use

You agree to use the Site only for lawful, personal, non-commercial purposes. You will not:

Use automated scripts, scrapers, or bots to access the Site or the demo, except for legitimate search-engine indexing.
Attempt to bypass the per-IP rate limit or any other access control on the demo.
Submit prompts that are unlawful, hateful, sexually explicit, harmful, deceptive, or that target real persons in defamatory ways.
Resell, repackage, or republish stories generated by the demo as your own work or as a commercial product.
Reverse-engineer, decompile, or extract model weights, prompts, or other proprietary internals.
Use the Site to harass, defraud, impersonate, or harm anyone.
Probe, scan, attack, or interfere with the Site's infrastructure or its hosting/CDN providers.

We may suspend or block access without notice if we reasonably believe these rules are being broken.

4. Intellectual property

Site content. The Site's design, code, brand, logos, and editorial content (including blog posts and guides) are owned by the Operator or its licensors and are protected by copyright, trade-mark, and related laws. You may share links to the Site, but you may not copy, modify, or republish material from it without permission.

Your inputs. When you submit a prompt to the demo (a name, a topic, etc.), you grant us a temporary, non-exclusive licence to process those inputs as needed to generate your story. We do not claim ownership of your inputs and we do not retain them after the story is delivered.

Generated stories. Stories produced by the demo are generated by an AI model based on your inputs. Subject to your compliance with these Terms, you may use the generated story for personal, non-commercial purposes — read it to your child, save it, share it with friends. You may not commercialise the demo output, claim it as a human-authored work, or use it to train another model.

5. AI-generated content disclaimer

Stories on the Site (including blog content and demo output) are produced or assisted by AI. They are intended as entertainment for children and the adults who read with them. They are not factual, educational, medical, legal, or psychological advice. AI output can occasionally be unexpected, repetitive, or off-topic; we do our best to keep it age-appropriate but we cannot guarantee every word. Use your judgment as the adult before reading aloud.

6. Newsletter

If you sign up for the newsletter (or provide your email at the demo gate), you consent to receive emails from us about Tellerio. We send a fresh story plus occasional product updates. Every email contains a one-click unsubscribe link; you can also email tellerio@cognicores.com to be removed.

7. Privacy

Our handling of your personal data is described in the Privacy Policy, which is incorporated into these Terms by reference.

8. Third-party services and links

The Site uses Cloudflare for hosting and Resend for email delivery. Links to the Apple App Store, Google Play, and external articles or services are provided for convenience; we don't control those services and aren't responsible for their content or terms.

9. Disclaimers

The Site and the demo are provided "as-is" and "as-available," without warranties of any kind, whether express or implied, including warranties of merchantability, fitness for a particular purpose, non-infringement, accuracy, or uninterrupted availability. The Operator does not warrant that the Site will be free of errors, secure, or available at any specific time. To the maximum extent permitted by law, all such warranties are disclaimed.

10. Limitation of liability

To the maximum extent permitted by law, the Operator will not be liable for any indirect, incidental, special, consequential, or punitive damages, or any loss of profits, data, goodwill, or other intangible losses, arising out of or related to your use of the Site, even if advised of the possibility of such damages. The Operator's total aggregate liability for any direct damages arising out of or related to your use of the Site is limited to fifty euros (€50). Nothing in these Terms limits liability for fraud, gross negligence, death or personal injury caused by negligence, or any liability that cannot be limited or excluded under applicable law (including non-waivable consumer rights under Spanish law).

11. Indemnification

You agree to indemnify and hold the Operator harmless from any claims, losses, or expenses (including reasonable legal fees) arising out of your misuse of the Site, your breach of these Terms, or your violation of any law or third-party right.

12. Suspension and termination

We may suspend or terminate your access to the Site or any feature (including the demo or the newsletter) at any time, with or without notice, if we reasonably believe you have breached these Terms or pose a risk to the Site, other users, or the Operator. You can stop using the Site at any time; if you've signed up for the newsletter, you can unsubscribe via the link in any email.

13. Changes to these Terms

We may update these Terms from time to time. The "Last updated" date at the top reflects the most recent change. Material changes will be communicated to newsletter subscribers; otherwise the updated text takes effect when posted. Continued use of the Site after changes means you accept the revised Terms.

14. Governing law and disputes

These Terms are governed by Spanish law. Any dispute arising from or related to these Terms or your use of the Site will be submitted to the exclusive jurisdiction of the courts of Valencia, Spain — except that, if you use the Site as a consumer in another EU/EEA country, you may also bring proceedings in your country of residence and benefit from any non-waivable consumer protection of that country's law. Nothing in these Terms restricts your right as a consumer to use the EU's Online Dispute Resolution platform.

15. Severability and entire agreement

If any provision of these Terms is found unenforceable, the remaining provisions stay in effect. These Terms, together with the Privacy Policy, are the entire agreement between you and the Operator regarding the Site.

16. Contact

Questions about these Terms? Email tellerio@cognicores.com.