BizDeutsch - Terms

Terms of Service

Effective date: November 6, 2026

These Terms of Service ("Terms") govern your access to and use of the BizDeutsch application (com.bizdeutsch.app, the "App") provided by LakeSoft ("we", "us", or "our").

By 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.

These Terms set forth the rights, obligations, and responsibilities between LakeSoft and users in connection with the use of the App.

1. About the App

BizDeutsch is a workplace German learning app. It provides job-specific lessons, interactive quizzes, phrase practice, review exercises, text-to-speech playback, and learning features such as Gems, hearts, XP, streaks, avatars, and monthly leaderboards.

Educational purpose

The App is intended for language learning and general educational purposes. Example sentences, translations, workplace scenarios, and explanations may contain errors or may not be appropriate in every situation. They do not constitute medical, legal, safety, employment, or other professional advice. Always follow applicable workplace procedures and obtain qualified guidance when needed.

We do not guarantee a particular level of language proficiency, examination result, professional qualification, employment opportunity, or other learning outcome. The App does not award an officially recognized language certificate or professional license.

Pricing and service scope

The current App does not include real-money purchases, paid subscriptions, or advertising. Virtual items are obtained using Gems earned through App activity. Any future paid offering will be subject to clearly disclosed pricing and applicable terms before you make a purchase.

The specific features and service scope may change for operational, technical, security, legal, or business reasons. Material changes affecting your access or use will be communicated with reasonable advance notice where practicable and as required by applicable law.

2. Accounts and Access

When cloud services are available, Google sign-in is required after onboarding. The App uses Firebase for authentication, account synchronization, virtual rewards, and leaderboards. If cloud services cannot initialize, the App may fall back to local guest use. Cloud features require a working internet connection and may not be available at all times.

You are responsible for using a Google account you are authorized to access, protecting your device and account credentials, and providing accurate information where requested. We do not receive your Google password. Please contact us if you believe your BizDeutsch account has been accessed without authorization.

3. Prohibited Activities

When using the App, you agree not to engage in any of the following prohibited activities:

• Using the App for any illegal, fraudulent, harmful, abusive, or unauthorized purpose.

• Impersonating another person or choosing a nickname that is unlawful, threatening, harassing, discriminatory, or infringes another person's rights.

• Using bots, automation, modified clients, exploits, fabricated lesson activity, or other unauthorized methods to manipulate Gems, hearts, XP, streaks, item ownership, rewards, or rankings.

• Attempting to bypass authentication, reward limits, access controls, or other security measures.

• Accessing another user's account or data without authorization, or interfering with the App, its backend, or other users' access.

• Introducing malicious code or deliberately disrupting, damaging, or overloading the App or related systems.

• Copying, selling, distributing, or commercially exploiting App software or learning materials beyond the permission granted by these Terms or applicable law.

• Reverse engineering, modifying, or interfering with the App except to the extent permitted by applicable law or an applicable open-source license.

• Using the App in a manner that violates applicable laws, platform rules, or these Terms.

4. Virtual Rewards and Items

Gems, hearts, XP, streaks, avatar items, and other virtual features are provided solely for use within the App. They are not money, deposits, cryptocurrency, or financial assets. They have no cash redemption value and cannot be sold, transferred, exchanged outside the App, or redeemed for real-world goods or services through us.

Reward rules, item availability, virtual prices, and ranking calculations may change to maintain balance, correct errors, prevent abuse, or support App operation. We may correct balances or rankings that result from a verified error, duplicate processing, or activity that violates these Terms. Material changes will be communicated where required by applicable law.

Signed-in rewards and virtual spending are validated by the server. Offline learning activity may be queued for synchronization, and displayed progress or balances may change when the server confirms the activity. An interrupted virtual purchase may remain pending and complete after reconnection. Guest progress and virtual balances are not guaranteed to transfer in full when you sign in or switch accounts.

5. Leaderboards

Reward-eligible lesson activity contributes to the current month's leaderboard. Other signed-in users may receive your in-app nickname, monthly XP, rank, and Firebase user ID through leaderboard responses. Your email address and detailed lesson history are not included in those responses. Choose a nickname you are comfortable sharing with other learners.

A new monthly ranking period does not automatically delete historical leaderboard records. Changing your nickname may not immediately update an existing leaderboard entry. Please review our Privacy Policy for information about visibility, retention, and deletion.

6. Synchronization and Account Deletion

The App stores learning data and preferences locally and synchronizes supported account data through Firebase when you are signed in. Local and cloud data may temporarily differ because of connectivity, pending operations, account changes, device behavior, or synchronization errors.

Account deletion

Signing out or uninstalling the App does not by itself delete your cloud account or associated records. You can request account deletion using the account deletion option in the App's settings or by contacting admin@pagebook.net. Account deletion removes the associated learning profile, virtual rewards and item data, and leaderboard entries from the active service, subject to legal retention requirements and provider-managed backup and log retention. Deleting your BizDeutsch account does not delete your Google account.

Clearing local App storage or uninstalling the App may remove local progress, preferences, and unsynchronized activity, subject to operating-system backup and restore behavior. To remove remaining local data, clear App storage on each device where you used the App. Account deletion is permanent, and signing in again may create a new account.

7. Suspension and Termination

We may restrict or suspend account access where reasonably necessary to address a material violation of these Terms, fraud, unauthorized access, a security threat, or a legal obligation. Where practicable and legally permitted, we will explain the reason and give you a reasonable opportunity to resolve the issue. You may contact us to request a review. Urgent protective action may be taken without advance notice.

You may stop using and uninstall the App at any time. Ending your use does not automatically delete cloud records; use the deletion methods described above if you want your account data removed.

8. Intellectual Property

All software, designs, trademarks, logos, user interface elements, original learning materials, text, illustrations, and other materials provided through the App are owned by LakeSoft or its licensors and are protected by applicable intellectual property laws.

Subject to these Terms, we grant you a limited, non-exclusive, non-transferable license to use the App and its learning materials for your personal learning purposes. Third-party and open-source components remain subject to their applicable licenses. Nothing in these Terms restricts rights granted to you by those licenses or by applicable law.

We do not claim ownership of your nickname or other information you provide. You permit us to process and display that information only as reasonably necessary to operate the App, synchronize your account, provide leaderboards, and fulfill the purposes described in our Privacy Policy.

9. Privacy

Our Privacy Policy explains how the App accesses, processes, stores, and handles information. You can review our Privacy Policy. These Terms do not replace any consent that applicable privacy law requires us to obtain separately.

10. Third-Party Services

The App uses third-party services and platform components, including Google Sign-In, Firebase, Google Fonts, and your device's text-to-speech engine. It may also open your app store, browser, email app, or system sharing sheet when you choose to use those features.

Text-to-speech availability, pronunciation, and voice quality depend on your device and selected speech engine. An online speech engine may process text through its provider. The current App does not record your voice or provide automated speech recognition or AI pronunciation scoring.

Your use of third-party services may be subject to their separate terms, privacy policies, and fees, including internet or mobile data charges. We do not control those services. This does not limit any responsibility we have under applicable law for services we provide to you. If you download or use the App through Google Play, the Apple App Store, or another store, that store's applicable terms also apply.

11. Availability, Warranties, and Liability

To the extent permitted by applicable law, the App is provided on an "as is" and "as available" basis. We do not guarantee that it will always be uninterrupted, error-free, compatible with every device, or that all learning content and features will be available in every language or environment.

You should not rely on the App as the only record of important information. Local data and unsynchronized activity may be lost through device failure, storage clearing, uninstallation, or other events. Cloud synchronization is not a guarantee against all data loss. These statements do not exclude any statutory duties or remedies relating to the service.

Limitation of liability

To the extent permitted by applicable law, we are not responsible for losses caused by circumstances beyond our reasonable control or for indirect or consequential losses that could not reasonably have been foreseen. Nothing in these Terms excludes or limits liability for fraud, intentional misconduct, gross negligence, death or personal injury caused by negligence, or any other liability that cannot lawfully be excluded or limited. Your mandatory consumer rights and statutory remedies remain unaffected.

12. App Updates and Changes to These Terms

We may release updates to correct errors, improve stability, change features, or meet security, platform, or legal requirements. Some updates may be necessary for continued compatibility or access to cloud features. Where required by applicable law, we will provide necessary updates and information about them.

We may update these Terms from time to time for changes to the App, legal requirements, security needs, or operational reasons. If we make material changes, we will provide reasonable advance notice describing the changes and their effective date, except where urgent action is necessary and legally permitted. Where your express acceptance is required, we will request it before applying the revised Terms to your continued use. You may stop using the App if you do not accept the changes.

13. Children and Minors

If you are under the age of majority in your jurisdiction, you may use the App only with the consent and supervision of a parent or legal guardian and only if you meet the minimum age requirements applicable to the App and any sign-in services you use. Parents and guardians should supervise a minor's use of the App and ensure that its content is appropriate for them.

14. Applicable Law and Severability

These Terms are subject to applicable law, including mandatory consumer protection rules in your country of residence where they apply. Nothing in these Terms prevents you from bringing a claim before a court available to you under applicable law or exercising statutory rights.

If any provision of these Terms is found to be invalid or unenforceable, the remaining provisions will continue to apply to the extent permitted by law.

15. Contact

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

Company: LakeSoft

Email: admin@pagebook.net

Website: LakeSoft