Terms of Use
Last updated: June 2026
These terms apply to all mobile applications published by Shirokamolab, including DocDuck, and to the Shirokamolab website (shirokamolab.com). By downloading or using any Shirokamolab app you agree to these terms. If you do not agree, do not use the app.
1. Who you are contracting with
These terms constitute a legal agreement between you and Artur Bielunov, sole proprietor, operating under the name Shirokamolab, established in Germany.
Contact: support@docduck.app
2. License
Subject to these terms, Shirokamolab grants you a personal, non-exclusive, non-transferable, revocable license to download and use the app on devices you own or control, for your personal use.
You may not:
- Copy, modify, or create derivative works of the app
- Reverse engineer, decompile, or disassemble the app
- Rent, lease, lend, sell, or sublicense the app
- Remove or alter any proprietary notices
3. Your content
You retain full ownership of all documents, files, and content you store within the app. Shirokamolab has no access to your content and claims no rights over it.
You are solely responsible for maintaining backups of your content. Shirokamolab is not liable for any loss of data resulting from device failure, accidental deletion, or other causes.
4. Paid features and subscriptions
Certain features require a paid subscription or one-time purchase. All purchases are processed by Apple through the App Store.
- Subscriptions automatically renew unless cancelled at least 24 hours before the renewal date. Manage or cancel your subscription in your Apple ID settings.
- Refunds are handled by Apple per the Apple Media Services Terms and Conditions. Shirokamolab does not process refunds directly.
- Price changes will be communicated in advance via the App Store listing or an in-app notice.
5. Acceptable use
You may not use the app to:
- Store, process, or distribute content that is illegal under applicable law
- Infringe on the intellectual property rights of third parties
- Distribute malware or harmful software
- Circumvent any security or access control mechanisms
6. Disclaimer of warranties
The app is provided “as is” and “as available” without warranty of any kind, express or implied. To the fullest extent permitted by applicable law, Shirokamolab disclaims all warranties, including implied warranties of merchantability, fitness for a particular purpose, and non-infringement.
We do not warrant that the app will be uninterrupted, error-free, or free of harmful components.
7. Limitation of liability
To the fullest extent permitted by applicable law, Shirokamolab shall not be liable for any indirect, incidental, special, consequential, or punitive damages — including loss of data, loss of profits, or business interruption — arising from your use of or inability to use the app.
Where liability cannot be excluded by law (including under German consumer protection law), our liability is limited to the amount you paid for the app or relevant feature in the 12 months preceding the claim, or €10, whichever is greater.
Nothing in these terms limits liability for fraud, gross negligence, or intentional misconduct, or for claims that cannot be limited under applicable law.
8. App Store terms
Your use of the app is also subject to the Apple Media Services Terms and Conditions. In the event of a conflict between these terms and Apple’s terms, Apple’s terms prevail with respect to the App Store relationship.
9. Termination
We may suspend or terminate your access to the app if you materially breach these terms. You may stop using the app at any time by deleting it from your device.
Termination does not affect rights or obligations that arose before termination.
10. Changes to these terms
We may update these terms from time to time. Material changes will be communicated via an in-app notice or App Store update notes. Continued use of the app after changes take effect constitutes acceptance of the updated terms.
11. Governing law and jurisdiction
These terms are governed by the laws of the Federal Republic of Germany, excluding conflict of law provisions. The courts of Munich, Germany have exclusive jurisdiction over any disputes arising from these terms, subject to mandatory consumer protection rules in your country of residence.
If you are a consumer in the EU, you also benefit from any mandatory protective provisions of the law of your country of residence, and you may bring proceedings in the courts of your country.
12. EU Consumer Dispute Resolution
The EU Online Dispute Resolution platform was discontinued on 20 July 2025. For information on alternative consumer dispute resolution options, visit the European Commission’s consumer redress portal: https://consumer-redress.ec.europa.eu. We are not obliged to participate in dispute resolution proceedings before a consumer arbitration board, and we do not voluntarily participate.