Terms of Service

Last updated 1 November 2026

1. Acceptance of Terms

Welcome to Kausaly, a mobile app provided by the operator named in our Impressum ("Kausaly", "we", "us" or "our"). By creating an account or using the app, you agree to these Terms of Service. If you do not agree, please do not use Kausaly. How we handle your data is explained in our Privacy Policy.

2. Not Medical Advice

Kausaly helps you track your habits and see patterns in your own data. It is not a medical device and does not diagnose, treat or prevent any condition. Patterns show what moved together in your data; they are not proof that one thing causes another. Do not make medical decisions based on Kausaly, and talk to a doctor about any health questions. In an emergency, call your local emergency number.

3. User Accounts

To use Kausaly, you need an account, created by signing in with Google or Apple, and you must be at least 18 years old. You are responsible for keeping access to your account secure and for activity under your account. You can delete your account at any time in the app.

4. Prohibited Activities

You must not use Kausaly for any unlawful purpose or in a way that could harm the app, our systems or other users. You must not try to gain unauthorised access to any part of Kausaly, overload or disrupt it, or copy or reverse engineer it, except where the law allows this.

5. Subscriptions

Some features may require a paid subscription. Subscriptions are purchased, billed, renewed and cancelled through Apple's App Store under Apple's terms. You can cancel at any time in your Apple account settings; your subscription then ends at the end of the current period. Refunds are handled by Apple. Your statutory consumer rights remain unaffected.

6. Your Data

What you log in Kausaly belongs to you. You allow us to store and process it only as needed to provide the features you use. You can export or delete your data at any time in the app. Please keep your own copy of anything important; we cannot guarantee that backups will always be available.

7. AI Features

We may offer optional AI features in the future. AI answers are generated automatically, may be incomplete or wrong, and are not medical or professional advice. Section 2 applies to them in full.

8. Intellectual Property

Kausaly, including its name, logo, design, text, graphics and software, belongs to us and is protected by intellectual property laws. You may not copy, distribute or create derivative works from it without our permission.

9. Limitation of Liability

Kausaly is provided "as is" and "as available". To the extent permitted by law, we make no warranties, express or implied, including warranties of merchantability, fitness for a particular purpose or non-infringement.

We are fully liable for intent and gross negligence, for injury to life, body or health, under product liability law, and where we have given a guarantee. For slight negligence, we are only liable for breaches of essential obligations that make the proper use of Kausaly possible, and only for typical, foreseeable damage. Otherwise, we are not liable, in particular for decisions you make based on patterns, charts or AI answers, or for indirect or consequential loss, including loss of data or profits.

Some countries do not allow certain limitations of liability. Where that is the case, these limitations apply only as far as the law permits.

10. Termination

You can stop using Kausaly and delete your account at any time. We may suspend or terminate your account if you seriously or repeatedly breach these terms; where reasonable, we will tell you first. When your account ends, your data on our servers is deleted.

11. Changes to These Terms

We may update these terms. We will tell you about significant changes in the app before they take effect. If you do not agree, you can stop using Kausaly and delete your account.

12. Governing Law

These terms are governed by the laws of Germany, excluding the UN Convention on Contracts for the International Sale of Goods. If you are a consumer, you keep the protection of the mandatory laws of the country where you live and may bring claims in the courts there. We are not willing or obliged to take part in dispute resolution before a consumer arbitration board.

13. Apple App Store

These terms are between you and us, not Apple. Apple is not responsible for Kausaly, its content, maintenance, support or any claims relating to it. If Kausaly fails to meet an applicable warranty, you may notify Apple for a refund of the purchase price, if any. Apple and its subsidiaries are third-party beneficiaries of these terms and may enforce them. You confirm that you are not located in a country subject to a US government embargo and are not on a US list of prohibited or restricted parties.

14. Contact

If you have questions about these terms, email us at hello@kausaly.ai.