Terms of Use for 4 Fälle
1. Introduction
Welcome to 4 Fälle (\"we,\" \"our,\" or \"us\"). These Terms of Use (\"Terms\") govern your use of our German grammar learning mobile application (the \"App\"). By downloading, installing, or using the App, you agree to be bound by these Terms. If you do not agree to these Terms, please do not use the App.
2. License Grant
Subject to these Terms and your payment of the one-time purchase price, we grant you a limited, non-exclusive, non-transferable, revocable license to download, install, and use the App on devices you own or control for your personal, non-commercial use.
This license includes:
- Unlimited personal use of all app features
- Access on devices linked to your app store account
- All future updates and improvements at no additional cost
3. Pricing and Purchase
4 Fälle is offered as a one-time purchase for €4.99. This is not a subscription.
What Your Purchase Includes:
- Lifetime Access: Once purchased, the app is yours forever
- All Features: Complete access to all four German cases (Nominativ, Akkusativ, Dativ, Genitiv)
- All Content: Comprehensive exercises, explanations, and practice materials
- Future Updates: All new features, improvements, and content updates at no extra charge
- No Subscriptions: No recurring charges, no hidden fees, no in-app purchases
- Multi-Device: Use on all devices connected to your Apple or Google account
All payment processing is handled securely by the Apple App Store or Google Play Store. We do not process payments directly or store your payment information. Your purchase is subject to the applicable app store's terms and conditions.
Refund Policy
Refunds are handled by Apple or Google according to their respective refund policies. We do not have direct control over refunds. If you have issues with the app, please contact us first so we can help resolve any problems.
4. User Account and Responsibilities
You are responsible for:
- Maintaining the confidentiality of your app store account credentials
- All activities that occur under your account
- Ensuring your use complies with applicable laws and these Terms
- Providing accurate information if you contact us for support
- Keeping your device and app updated for optimal performance
5. Acceptable Use
You agree to use the App only for lawful purposes and in accordance with these Terms. You may not:
- Violate Laws: Use the app in any way that violates applicable laws or regulations
- Share Account: Share your app store credentials to give others unauthorized access
- Reverse Engineer: Attempt to decompile, reverse engineer, or hack the App
- Commercial Use: Use the App for commercial purposes without written permission
- Redistribute: Copy, redistribute, or resell the App or its content
- Interfere: Interfere with or disrupt the App's functionality or servers
- Extract Content: Systematically extract or copy content for unauthorized use
6. Content and Intellectual Property
Our Content
The App and all of its content, including but not limited to:
- German grammar exercises and educational materials
- Text, explanations, and example sentences
- Graphics, user interface, and design
- Audio pronunciation files
- Software code and algorithms
...are owned by us or our licensors and are protected by copyright, trademark, and other intellectual property laws. All rights not expressly granted in these Terms are reserved.
Your Learning Data
You retain ownership of your learning progress, notes, and preferences created within the App. This data is stored locally on your device. By using the App, you grant us a limited license to store minimal data (such as purchase verification) necessary to provide the service.
7. Privacy and Data Protection
Your privacy is important to us. Please review our Privacy Policy to understand how we collect, use, and protect your information.
Key points:
- Your learning data is stored locally on your device
- We store only minimal purchase verification information
- We do not sell or share your personal information
- We comply with GDPR and other applicable privacy laws
8. App Store Terms
For users who download the App through the Apple App Store or Google Play Store:
- These Terms are between you and us, not Apple or Google
- Apple and Google are not responsible for the App or its content
- Your use is also subject to the app store's terms and conditions
- Apple and Google have no obligation to provide support or maintenance
- In case of warranty issues, contact us, not the app store
- Apple and Google are third-party beneficiaries of these Terms
9. Disclaimers and Limitations
Educational Purpose
4 Fälle is designed as an educational tool for learning German grammar. While we strive for accuracy:
- The App is a learning aid and should not be your only source for grammar instruction
- We do not guarantee specific learning outcomes or exam success
- Educational effectiveness varies by individual learning style and commitment
Service Availability
The App is provided "AS IS" and "AS AVAILABLE" without warranties of any kind, either express or implied. We do not guarantee:
- Continuous, uninterrupted, or error-free operation
- Complete accuracy, reliability, or currentness of content
- Freedom from bugs, viruses, or other harmful components
- Compatibility with all devices, operating systems, or future OS updates
- That the app will meet your specific educational needs
Limitation of Liability
To the maximum extent permitted by applicable law, we shall not be liable for any:
- Indirect, incidental, special, consequential, or punitive damages
- Loss of profits, data, use, goodwill, or other intangible losses
- Damages resulting from your use or inability to use the App
- Unauthorized access to or alteration of your data
- Third-party content or conduct
- Any other matter relating to the App
Some jurisdictions do not allow the exclusion of certain warranties or limitation of liability, so these limitations may not apply to you.
10. Termination
We reserve the right to terminate or suspend your access to the App at any time, with or without notice, for:
- Violations of these Terms
- Fraudulent or illegal activities
- Abuse of the app or attempts to hack/reverse engineer
- Chargebacks or payment disputes determined to be fraudulent
- Technical, legal, or business reasons
Upon termination:
- Your license to use the App immediately ceases
- You must delete the App from all your devices
- Provisions of these Terms that by their nature should survive (disclaimers, liability limitations, governing law) remain in effect
- Termination does not entitle you to a refund unless required by law
11. Updates and Modifications
App Updates
We continuously improve 4 Fälle to provide you with the best learning experience. We may:
- Release updates with new features, content, or improvements
- Fix bugs and enhance performance
- Modify or discontinue certain features
- Require updates for continued use
All updates are provided at no additional cost as part of your one-time purchase.
Terms Changes
We may modify these Terms from time to time. When we make changes:
- We will update the "Last Updated" date at the top
- We will notify you of material changes through the App or via email
- Changes become effective immediately upon posting unless otherwise stated
- Continued use of the App after changes constitutes acceptance of the new Terms
If you don't agree with the changes, you must stop using the App.
12. Governing Law and Disputes
These Terms are governed by and construed in accordance with the laws of Germany, without regard to its conflict of law provisions.
Dispute Resolution
In the event of any dispute, controversy, or claim arising from these Terms:
- Informal Resolution: Contact us first at [email protected] to resolve the matter informally
- Mediation: If informal resolution fails, we agree to attempt mediation before litigation
- Jurisdiction: Any legal action must be brought in the courts located in Germany
- Language: Legal proceedings may be conducted in German or English
EU Consumer Rights
If you are a consumer in the European Union, you also have the benefit of mandatory consumer protection laws in your country of residence, and nothing in these Terms affects your statutory rights as a consumer.
13. Severability
If any provision of these Terms is found to be invalid, illegal, or unenforceable by a court of competent jurisdiction:
- That provision shall be modified to the minimum extent necessary to make it valid and enforceable
- If modification is not possible, the provision shall be severed from these Terms
- The remaining provisions will continue in full force and effect
14. Entire Agreement
These Terms, together with our Privacy Policy, constitute the entire agreement between you and us regarding the use of the App and supersede all prior or contemporaneous understandings and agreements, whether written or oral.
© 2026 4 Fälle. All rights reserved.