Terms of Service

1. Service Description

Librisync is a web-based book management platform operated by Sebastian Taatz Consulting UG (haftungsbeschränkt) ("we", "us", "our"). The service allows you to:

• Organize and manage your personal book collection digitally
• Scan books via ISBN barcode or AI-powered image recognition
• Track your reading progress and create wishlists
• Receive AI-generated book recommendations and tag suggestions
• Share your library, individual shelves, or curated wishlists with others

We continuously improve Librisync and may adapt, update, or develop the service with reasonable advance notice.

2. Account Registration and Security

To use Librisync, you must create an account by providing a valid email address and a secure password. You agree to:

• Provide accurate and complete registration information
• Keep your login credentials confidential and not share them with third parties
• Notify us immediately of any unauthorized use of your account
• Be solely responsible for all activities conducted through your account

You must be at least 16 years of age to create an account. We reserve the right to suspend or terminate accounts that violate these terms.

3. Acceptable Use

You agree to use Librisync only for its intended purpose — managing your personal book collection. You may not:

• Use the service for any unlawful purpose or in violation of applicable laws
• Attempt to gain unauthorized access to our systems or other users' data
• Upload malicious content, malware, or harmful code
• Use automated tools (bots, scrapers) to access the service without prior written consent
• Interfere with the proper functioning of the service or impose unreasonable load on our infrastructure
• Resell, sublicense, or commercially exploit the service without authorization

4. Intellectual Property

Your Content

You retain all rights to the data you upload to Librisync, including book notes, tags, and any personal annotations. By using the service, you grant us a limited, non-exclusive license to process and store your data solely for the purpose of providing the service.

Our Platform

All rights to the Librisync platform — including its design, source code, logos, and documentation — are owned by Sebastian Taatz Consulting UG (haftungsbeschränkt). You may not copy, modify, distribute, or reverse-engineer any part of the platform without our prior written consent.

5. AI-Powered Features

Librisync uses artificial intelligence for several features, including book scanning via image recognition, automatic tag suggestions, and personalized reading recommendations.

6. Third-Party Services

Librisync integrates with the following third-party services to provide its functionality:

• Google Books API: For retrieving book metadata (titles, authors, covers) based on ISBN or search queries
• Google Gemini: For AI-based image and text recognition in bookshelf scans and automated book synopsis generation
• OpenAI: For AI-based text and image processing in book detection and automated tag generation
• Open Library (openlibrary.org): For book metadata lookup, cover images, and author photos
• Internet Archive (archive.org): For book cover image search
• WorldCat (OCLC): For ISBN and book metadata lookup
• Supabase: For database hosting, authentication, and application infrastructure (EU servers)
• Resend: For transactional and product email delivery (EU servers)

These services are subject to their own terms and privacy policies. We are not responsible for the availability or conduct of third-party services. For details on data shared with these providers, please see our Privacy Policy.

8. Limitation of Liability

Our liability and warranties are governed by the following:

• We are liable without limitation for intent, gross negligence, damages resulting from injury to life, body, or health, and under mandatory product liability law.
• For slightly negligent breaches of essential contractual obligations (cardinal obligations), our liability is limited to foreseeable, contract-typical damages; any further liability for slight negligence is excluded.
• Mandatory statutory warranty and consumer rights under applicable law remain unaffected.
• Special provision for users residing in the United States: To the maximum extent permitted by applicable law, the service is provided 'AS IS' and 'AS AVAILABLE'; our aggregate liability is limited to the greater of $50 or the total amounts paid by you to Librisync in the past 12 months. Any dispute resolution will be conducted on an individual basis only (no class, consolidated, or representative actions), and class actions and representative proceedings are waived.

Should any provision of these Terms of Service be or become invalid in whole or in part, the validity of the remaining provisions shall remain unaffected.

9. Termination and Account Deletion

You may delete your account at any time through your account settings. Upon deletion:

• Your account and library data will be permanently deleted within 30 days; records required to meet legal obligations, honour opt-outs, or address security needs may be retained
• You may export your library data before deletion via the data export feature in your account settings
• Shared links to your library, shelves, or wishlists will become inactive immediately

We reserve the right to suspend or terminate your account if you violate these Terms of Service, with prior notice where reasonably possible. In case of serious violations, immediate termination without notice may be necessary.

10. Changes to These Terms

We reserve the right to amend these Terms of Service only for valid, objectively justified reasons (in particular changes in applicable laws, binding judicial decisions, technical security requirements, or equivalent operational necessities), provided such amendments do not alter the contractual balance to your detriment. We will notify you of any such amendments in text form (via email or within the service) at least 30 days before they take effect. If you do not object before the effective date or if you continue using the service after that date, the amended Terms shall take effect; we will explicitly inform you of your right to object and to terminate your account free of charge in our notification. For material modifications that affect primary contractual obligations or fees, we will obtain your express affirmative consent.

11. Governing Law and Jurisdiction

These Terms of Service are governed by and construed in accordance with the laws of the Federal Republic of Germany, excluding the UN Convention on Contracts for the International Sale of Goods (CISG).

If you are a consumer within the European Union, you also benefit from any mandatory provisions of the law of your country of residence. Nothing in these terms affects your rights as a consumer under applicable EU law.

For commercial users, the exclusive place of jurisdiction is Würzburg, Germany. For consumers, the statutory rules on jurisdiction apply.

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