✦ Kesla — Terms of Use

Effective date: August 14, 2026

These Terms govern your use of the Kesla app provided by Matador Vanguard LLC ("we", "us"). By downloading or using Kesla, you agree to these Terms. If you don't agree, don't use the app.

1. License

We grant you a personal, non-exclusive, non-transferable, revocable license to use Kesla for your own, non-commercial learning, subject to these Terms and the rules of the app store you downloaded it from.

2. Subscriptions, free trial & billing

Kesla Pro is an auto-renewing subscription that unlocks the premium AI engines. The on-device "Basic" engine is free.
Free trial. New subscribers may receive a 7-day free trial. If you don't cancel before the trial ends, it automatically converts to a paid subscription at the price shown at purchase.
Auto-renewal. The subscription renews automatically for the same period unless you cancel at least 24 hours before the end of the current period. Your account is charged for renewal within 24 hours before the period ends.
Managing & canceling. Purchases are billed through your Apple or Google account. Manage or cancel anytime in your app store account settings. Deleting the app does not cancel a subscription.
Refunds are handled by Apple or Google under their policies; we generally cannot issue store refunds directly.
Prices may change; we will seek consent for increases where required, and changes won't affect the period you've already paid for.

3. AI-generated content — important

Kesla's lessons and quizzes are generated by artificial intelligence and are provided for general educational purposes only. They may be incomplete, out of date, or incorrect. They are not professional advice — do not rely on them for medical, legal, financial, safety, or other professional decisions. Always verify important information with a qualified source.

4. Acceptable use

You agree not to:

use Kesla for any unlawful, harmful, or abusive purpose, or to generate or seek content that facilitates violence, weapons, illegal drugs, hacking, fraud, self-harm, sexual content involving minors, or harassment;
attempt to bypass, disable, or probe the app's safety, moderation, or rate limits, or to reverse engineer, decompile, or extract source or keys except as permitted by law;
use automated means to access the service, or overload or disrupt it;
misuse generated content in a way that infringes others' rights or violates any AI provider's policies.

We may suspend or terminate access for violations.

5. Intellectual property

The app, its design, and its software are owned by Matador Vanguard LLC and protected by law. Names of third-party AI models and their providers are trademarks of their respective owners; Kesla is independent and unaffiliated. AI-generated lesson content is provided to you for your personal learning use.

6. Disclaimers

Kesla is provided "as is" and "as available", without warranties of any kind, express or implied, including merchantability, fitness for a particular purpose, accuracy, and non-infringement, to the maximum extent permitted by law.

7. Limitation of liability

To the maximum extent permitted by law, Matador Vanguard LLC will not be liable for any indirect, incidental, special, consequential, or punitive damages, or for lost profits or data, arising from your use of the app. Our total liability for any claim will not exceed the greater of the amount you paid us in the 12 months before the claim or USD $50.

8. Indemnity

You agree to indemnify and hold harmless Matador Vanguard LLC from claims arising out of your misuse of the app or violation of these Terms.

9. Changes & termination

We may update these Terms; material changes take effect when posted with an updated date. We may modify or discontinue the app, in whole or in part, at any time. You may stop using the app at any time.

10. Governing law

These Terms are governed by the laws of the State of Texas, USA, without regard to conflict-of-laws rules. Disputes will be resolved in the courts of the State of Texas, USA, unless applicable law provides otherwise.

11. App Stores

You obtained Kesla through the Apple App Store or Google Play, and additional terms from those stores apply. For iOS: these Terms are between you and Matador Vanguard LLC only, not Apple; Apple is not responsible for the app or its content; and Apple and its subsidiaries are third-party beneficiaries of these Terms and may enforce them. Maintenance, support, and any product warranties are our responsibility, not the store's, to the extent required by law.

12. Contact

Matador Vanguard LLC · tc@matador-llc.com · https://kesla.app