Terms of Use

1. Scope and Operator

These Terms of Use ("Terms") govern your access to and use of the services and products provided by Sonaa, including Sonaa Week (the "Service"). The Service is operated by Henrik Alexander Zabel ("we", "us", or "our"), Kaiserplatz 13, 80803 Munich, Germany. By creating an account or otherwise using the Service, you agree to these Terms. If you do not agree, do not use the Service.

2. Eligibility

You must be at least 16 years old to use the Service (or such higher age as required by applicable law in your country). By using the Service you represent and warrant that you meet this requirement. If you are under 18, you should review these Terms with a parent or guardian.

3. Account Registration

You must provide a valid email address and choose a secure password to register. You are responsible for:

• maintaining the confidentiality of your credentials;
• all activity that occurs under your account, whether authorized by you or not;
• notifying us immediately at contact@henrikzabel.com if you suspect unauthorized use of your account.

You may register only one account per person. Accounts are non-transferable.

4. Description of the Service

Sonaa Week is a privacy-first weekly calendar application that lets you manage tasks and events in a single seven-day view. The Service is provided via the web application at sonaa.co and, where available, native applications. Features vary by subscription plan. We reserve the right to modify, suspend, or discontinue any part of the Service at any time with reasonable notice.

5. Acceptable Use

You agree not to:

• use the Service for any unlawful purpose;
• attempt to gain unauthorized access to the Service or its underlying systems;
• reverse-engineer, decompile, or disassemble any part of the Service;
• upload or transmit malware, spam, or any content that violates applicable law or third-party rights;
• resell, sublicense, or commercially exploit the Service without our prior written consent;
• use automated tools (bots, scrapers, etc.) to access the Service in a way that exceeds fair use.

We reserve the right to suspend or terminate accounts that violate these rules.

6. User-Generated Content

You retain ownership of all content you create in Sonaa Week (tasks, notes, events). By storing content on our servers you grant us a limited, non-exclusive license to host and process that content solely for the purpose of providing the Service to you. We do not use your content for advertising or to train AI models. You are responsible for ensuring your content does not infringe any applicable laws or third-party rights.

7. Fees and Payment

The Service is currently provided free of charge; no paid plans are offered. Plans that we grant you free of charge (complimentary plans) cost nothing, do not renew into a paid plan and may end on the date stated in your account settings. If paid plans are introduced, we will inform you in advance and they will only apply once you have agreed to them.

8. Intellectual Property

The Service, including its design, logos, source code, and all content created by us, is protected by copyright and other intellectual-property laws and belongs to Henrik Alexander Zabel or its licensors. Nothing in these Terms grants you any right to use our trademarks, logos, or brand features without our prior written consent.

9. Disclaimer of Warranties

The Service is provided "as is" and "as available". To the extent permitted by applicable law we disclaim all warranties, express or implied, including merchantability, fitness for a particular purpose, and non-infringement. We do not warrant that the Service will be error-free or uninterrupted. Statutory warranty rights of consumers under German law remain unaffected.

10. Limitation of Liability

To the extent permitted by law, our liability for ordinary negligence is limited to foreseeable, typical damage. We are fully liable for damages caused by intent or gross negligence, injury to life, body or health, and mandatory statutory liability (e.g. under the German Product Liability Act). These limitations apply equally to our legal representatives and agents.

11. Termination

You may delete your account at any time in the app settings, which will result in permanent deletion of your data within 30 days. We may suspend or terminate your access immediately if you breach these Terms or if required by law. Upon termination, your right to use the Service ceases immediately.

12. Changes to Terms

We may update these Terms from time to time. Material changes will be communicated at least 30 days in advance via email or an in-app notice. Continued use of the Service after the effective date constitutes acceptance of the revised Terms.

13. Governing Law and Jurisdiction

These Terms are governed by the laws of the Federal Republic of Germany, excluding the UN Convention on Contracts for the International Sale of Goods (CISG). For disputes with merchants (Kaufleute) the courts at our registered seat have exclusive jurisdiction. Mandatory consumer-protection provisions of the country in which a consumer habitually resides remain unaffected.

14. Contact

Questions about these Terms? Contact us at contact@henrikzabel.com.