karl.
EULA

End-User Licence Agreement

Last updated: 6 June 2026.

This End-User Licence Agreement ("EULA") is a binding agreement between you (either an individual or a single legal entity, "you" or "Licensee") and Arvid Lindqvist, sole trader registered in Sweden at Dag Hammarskjölds torg 9, 211 18 Malmö, Sweden ("Licensor", "we", "us"), governing your installation and use of the Karl software, including any updates, documentation, and licence files we provide (collectively, the "Software").

By installing, copying, activating, or otherwise using the Software you agree to be bound by this EULA. If you do not agree, do not install or use the Software.

1. Licence grant

Subject to your compliance with this EULA and (for paid licences) timely payment of the applicable fees, we grant you a non-exclusive, non-transferable, non-sublicensable, revocable licence to install and use the Software for your internal business or personal use, in accordance with the tier and developer count stated in the licence file we issue to you.

2. Licence tiers

  • Demo. The Software runs without a valid licence file in a feature-limited demo mode. The demo is provided for evaluation only and may not be used for production work.
  • Trial. A free 30-day Solo-tier licence for a single developer, intended for evaluation of the full feature set. Trial licences may not be used for production work nor for more than one developer.
  • Solo. A paid perpetual or term licence for a single named developer.
  • Team. A paid licence for the number of developers indicated in the licence file ("MaxDevs"). Each developer counts as one seat regardless of how many machines that developer uses.

The licence file is digitally signed by us and is the authoritative record of the tier, seat count, validity period, and Licensee for your installation.

3. Restrictions

You may not, and may not permit any third party to:

  • use the Software in a manner exceeding the seat count or tier indicated in your licence file;
  • rent, lease, lend, sell, sublicense, distribute, transfer, or otherwise commercially exploit the Software or the licence file, except as expressly permitted by us in writing;
  • modify, adapt, translate, or create derivative works of the Software, except to the extent that such restriction is prohibited by applicable mandatory law;
  • reverse-engineer, decompile, or disassemble the Software, except to the extent expressly permitted by applicable mandatory law (including Article 6 of EU Directive 2009/24/EC on the legal protection of computer programs) and only after first contacting us in writing to request the necessary information;
  • remove or alter any copyright, trademark, or other proprietary notice in or on the Software or the licence file;
  • forge, tamper with, share, or attempt to forge a licence file, or circumvent any licence-check mechanism;
  • use the Software to develop a competing product or service, or to benchmark the Software for the purpose of marketing a competing product;
  • use the Software in violation of applicable law or to infringe the rights of any third party.

4. Open-source components

The Software may include open-source components. The licence terms for those components are made available with the Software and apply to those components instead of (or in addition to) this EULA where the open-source licence so requires.

5. Updates and support

We may, but are not obliged to, provide updates, bug fixes, and new versions of the Software. Where your licence includes an active update entitlement, you may download such updates from our update server while the entitlement remains valid.

Support is provided on a best-effort basis through the contact channels stated on our Site. No specific response time is guaranteed unless agreed separately in writing.

6. Ownership

The Software is licensed, not sold. We and our licensors retain all right, title, and interest (including all intellectual property rights) in and to the Software. This EULA grants you only the limited licence expressly set out in Section 1; no other rights are granted by implication, estoppel, or otherwise.

7. Your data; data protection

The Software is self-hosted. Your source code, prompts, AI trajectories, and related data stay on machines you control and are not transmitted to us. The Software contacts our update server only to check for updates and to verify your licence; the data exchanged in that process is described in the Privacy policy.

You are responsible for complying with all laws applicable to your processing of any personal or confidential data with the Software, including the GDPR where applicable.

8. Fees and taxes

Fees for paid licences are stated on our pricing page and on the Paddle checkout. Paid purchases are processed by Paddle.com Market Limited ("Paddle") as merchant of record; Paddle collects and remits applicable taxes (VAT, GST, sales tax) as shown at checkout. Unless stated otherwise, all fees are non-refundable except as set out in the Refund policy or as required by mandatory law.

9. Term and termination

This EULA takes effect when you first install or use the Software and continues until terminated.

  • By you. You may terminate at any time by ceasing all use of the Software and deleting all copies in your possession and control.
  • By us. We may terminate this EULA, or revoke or refuse to renew a licence, if you materially breach this EULA and (if the breach is curable) fail to cure the breach within thirty (30) days after we notify you. We may also terminate immediately if we reasonably determine that continued provision of the Software to you would expose us to legal liability.
  • Effect of termination. On termination, your licence ends and you must stop using the Software and delete all copies. Sections 3, 6, 9-13, and 15-17 survive termination.

10. Disclaimer of warranties

To the maximum extent permitted by applicable law, the Software is provided "as is" and "as available", without warranties of any kind, whether express, implied, or statutory, including without limitation any implied warranties of merchantability, fitness for a particular purpose, non-infringement, accuracy, or uninterrupted or error-free operation. We do not warrant that the Software will meet your requirements or that any defect will be corrected.

This Section does not exclude or limit any warranty or right that cannot be excluded or limited under mandatory law (for example, certain rights of consumers under EU law).

11. Limitation of liability

To the maximum extent permitted by applicable law, we shall not be liable for any indirect, incidental, special, consequential, exemplary, or punitive damages, or for any loss of profit, revenue, goodwill, business opportunity, or data, arising out of or in connection with the Software or this EULA, whether based in contract, tort, statute, or otherwise, and whether or not we have been advised of the possibility of such damages.

Our total aggregate liability arising out of or in connection with the Software or this EULA shall not exceed the greater of (a) the fees actually paid by you to us (via Paddle) for the Software in the twelve (12) months preceding the event giving rise to the claim, and (b) one hundred euro (EUR 100).

Nothing in this Section limits or excludes liability that cannot lawfully be limited or excluded, including liability for intentional misconduct, gross negligence, or death or personal injury caused by negligence.

12. Indemnity

You agree to indemnify, defend, and hold us harmless from and against any claim, loss, damage, liability, cost, and expense (including reasonable legal fees) arising out of your breach of this EULA, your misuse of the Software, or your violation of applicable law or any third-party right.

13. Audit (Team licences)

For Team licences, you agree on reasonable prior written notice (and no more than once per twelve-month period) to provide us with information sufficient to verify that your use of the Software complies with the seat count stated in your licence file. If verification shows over-use, you agree to promptly purchase the additional seats at our then-current list price.

14. Export control and sanctions

You confirm that you are not located in, and that you will not export or re-export the Software to, any country or to any person, entity, or end-use that is subject to applicable export-control laws or trade sanctions (including EU and US sanctions).

15. Changes

We may update this EULA from time to time. The version in force at the time of your purchase or trial issuance applies to that licence; any update applies prospectively to new licences and to renewals.

16. Governing law and venue

This EULA is governed by the laws of Sweden, excluding their conflict-of-law rules and the UN Convention on Contracts for the International Sale of Goods. Disputes arising out of or in connection with this EULA shall be brought exclusively before the competent courts of Sweden, with Stockholm District Court (Stockholms tingsrätt) as the court of first instance.

If you are a consumer domiciled in the EU/EEA, you retain the benefit of the mandatory consumer-protection rules of your country of residence, and you may also bring proceedings in the courts of that country.

17. Miscellaneous

  • Entire agreement. This EULA, together with the Terms of service, the Privacy policy, and the Refund policy, constitutes the entire agreement between you and us regarding the Software.
  • Severability. If any provision of this EULA is found unenforceable, the remaining provisions remain in full force and effect.
  • No waiver. Our failure to enforce any provision is not a waiver of our right to do so later.
  • Assignment. You may not assign or transfer your rights or obligations under this EULA without our prior written consent. We may assign this EULA in connection with a merger, acquisition, or sale of assets.
  • Language. The English version of this EULA is the binding version; any translation is provided for convenience only.

18. Contact

Arvid Lindqvist
Dag Hammarskjölds torg 9, 211 18 Malmö, Sweden
Email: contact@karl-ai.se