Terms of Service

Last updated: February 20, 2026

Welcome to Laakso. These Terms of Service ("Terms") govern your access to and use of the Laakso applications and services (collectively, the "Service") provided by Onestack Oy ("Laakso", "we", "us", or "our"), a company registered in Finland.

By accessing or using the Service, you agree to be bound by these Terms. If you do not agree, please do not use the Service.

1. Description of Service

Laakso is an adaptive training service designed for ultra-distance runners. The Service helps you prepare for ultra running competitions by:

  • Planning your training season
  • Analyzing your training data
  • Providing personalized insights and recommendations

The Service may integrate with third-party fitness platforms and wearable services (such as Garmin Connect and others) to provide these features.

2. Beta Program

Laakso may be offered as a closed beta. Access may be by invitation only. By participating in a beta program, you acknowledge that:

  • The Service is provided “as is” and may contain bugs, errors, or other issues.
  • Features may change, be added, or removed without notice.
  • The Service may be unavailable at times for maintenance or updates.
  • Your feedback may be used to improve the Service without compensation.

Beta access may be revoked at any time at our discretion and we may limit the number of beta participants.

3. Account Registration

To use certain features of the Service, you must sign in. We currently support passwordless sign-in (for example, email magic links) and may also support third-party sign-in methods (for example, Google). When you use the Service, you agree to:

  • Provide accurate and complete information where requested (for example, a valid email address).
  • Keep access to your email account and device secure, and do not share magic links or otherwise allow others to access your account.
  • Notify us immediately of any unauthorized use of your account.
  • Be responsible for all activities that occur under your account.

You must be at least 16 years old (or a higher age where required by local law) to create an account and use the Service.

4. Acceptable Use

You agree not to use the Service to:

  • Violate any applicable laws or regulations.
  • Infringe on the rights of others, including intellectual property rights.
  • Transmit harmful, offensive, or illegal content, including malware.
  • Attempt to gain unauthorized access to the Service or its related systems.
  • Interfere with or disrupt the Service or its infrastructure.
  • Use automated means (bots, scrapers, etc.) to access the Service without our written permission.
  • Impersonate another person or entity, or misrepresent your affiliation.

We reserve the right to suspend or terminate your access if you violate these Terms.

5. Third-Party Services

The Service may allow you to connect your account with third-party services such as fitness platforms (e.g., Garmin) and authentication providers (e.g., Google). By connecting these services, you:

  • Authorize us to access and use data from these services as described in our Privacy Policy.
  • Acknowledge that your use of third-party services is subject to their own terms and policies.
  • Understand that we are not responsible for the availability, accuracy, or content of third-party services.

You can disconnect third-party services at any time through your account settings or by contacting us.

6. Intellectual Property

The Service, including its design, features, content, and underlying technology, is owned by Onestack Oy and protected by copyright and other applicable intellectual property laws.

We grant you a limited, non-exclusive, non-transferable, revocable license to use the Service for your personal, non-commercial purposes in accordance with these Terms.

You may not:

  • Copy, modify, or distribute any part of the Service.
  • Reverse engineer, decompile, or attempt to extract the source code of the Service.
  • Use our name, logos, or branding without our written permission.
  • Remove or alter any copyright or proprietary notices from the Service.

7. Your Content and Data

You retain ownership of any content or data you submit to the Service (“Your Content”). By submitting Your Content, you grant us a worldwide, non-exclusive, royalty-free license to use, store, and process Your Content solely to provide the Service to you.

We may also use aggregated, anonymized data derived from Your Content to improve the Service, provided that such data cannot be used to identify you.

8. Health and Fitness Disclaimer

The Service provides training analysis and recommendations for informational purposes only. The Service is not a substitute for professional medical advice, diagnosis, or treatment.

  • Always consult with a qualified healthcare professional before starting any training program.
  • Listen to your body and stop any activity if you experience pain, discomfort, or unusual symptoms.
  • We are not responsible for injuries, health issues, or other damages resulting from following recommendations provided by the Service.

9. Limitation of Liability

To the fullest extent permitted by applicable law, Onestack Oy and its officers, directors, employees, and agents shall not be liable for:

  • Any indirect, incidental, special, consequential, or punitive damages.
  • Any loss of profits, data, goodwill, or other intangible losses.
  • Any damages resulting from your use of or inability to use the Service.
  • Any damages resulting from unauthorized access to your account or data.

In no event shall our total liability exceed the amount you paid to us (if any) in the twelve (12) months preceding the claim.

10. Disclaimer of Warranties

The Service is provided “as is” and “as available” without warranties of any kind, whether express or implied, including but not limited to implied warranties of merchantability, fitness for a particular purpose, and non-infringement.

We do not warrant that:

  • The Service will be uninterrupted, secure, or error-free.
  • The results obtained from the Service will be accurate or reliable.
  • Any defects or errors in the Service will be corrected.

11. Indemnification

To the extent permitted by applicable law, you agree to indemnify, defend, and hold harmless Onestack Oy and its officers, directors, employees, and agents from and against any claims, liabilities, damages, losses, and expenses (including reasonable legal fees) arising out of or related to:

  • Your willful misuse of the Service.
  • Your willful violation of these Terms.
  • Your violation of any rights of another party.

12. Termination

You may stop using the Service and close your account at any time by contacting us at contact@laakso.app.

We may suspend or terminate your access to the Service immediately if we believe you have violated these Terms. We may also terminate your access for any other reason by providing you with at least 30 days’ prior notice.

Upon termination, your right to use the Service will immediately cease. Any provisions of these Terms that by their nature should survive termination will survive, including intellectual property provisions, disclaimers, limitations of liability, and indemnification.

13. Changes to These Terms

We may update these Terms from time to time. When we make changes, we will update the “Last updated” date at the top of this page and notify you by email or through the Service.

For material changes, we will provide at least 30 days’ notice before the new terms take effect. If you do not agree to the updated Terms, you may close your account before the changes take effect. Your continued use of the Service after the notice period constitutes acceptance of the updated Terms.

14. Governing Law and Disputes

These Terms are governed by and construed in accordance with the laws of Finland, without regard to its conflict of law provisions.

Any disputes arising out of or relating to these Terms or the Service shall be resolved in the courts of Finland, and you consent to the personal jurisdiction of such courts.

15. General Provisions

  • Entire Agreement: These Terms, together with our Privacy Policy, constitute the entire agreement between you and Onestack Oy regarding the Service.
  • Severability: If any provision of these Terms is found to be unenforceable, the remaining provisions will remain in full force and effect.
  • Waiver: Our failure to enforce any right or provision of these Terms will not be considered a waiver of those rights.
  • Assignment: You may not assign or transfer these Terms without our prior written consent. We may assign these Terms without restriction.

16. Contact Us

If you have any questions about these Terms, please contact us at:

Email: contact@laakso.app

Legal entity: Onestack Oy (registered in Finland)