Terms of Service

1. About Liber

Liber is a desktop application for managing and reading eBooks developed and operated by Liber ("we," "us," or "our"). These terms govern your use of the Liber application, our website, and all associated cloud services. To use Liber, you must be at least 16 years old — or the minimum age of digital consent in your country, if it is lower.

1.1 Service Availability & Modifications

We may modify, suspend, or discontinue features to improve the software, provided that such changes do not materially reduce the core functionality of paid services in violation of applicable consumer law.

2. License Grant & Acceptable Use

We grant you a personal, non-exclusive, non-transferable, revocable license to install and use Liber on the devices you own, for your personal, non-commercial purposes. The free tier has no device limit; a Premium license is active on one device at a time and you can move it to another from the app itself. You may not:

• Copy, modify, distribute, sell, or sublicense the software.
• Reverse engineer, decompile, or disassemble the software (except as permitted by applicable law).
• Use the software for any unlawful purpose, or to infringe upon third-party intellectual property rights.
• Share, resell, or transfer your Premium license to another person.

Book sources: Liber ships with sources that offer public-domain or openly licensed books, and it lets you add your own. We do not host, supply, or check any of that content. When you add a source, you are responsible for having the right to download what you download, and whatever terms that source sets apply between you and whoever runs it.

License Termination: Liber has no user accounts: Premium is tied to a license key, not a login. We reserve the right to suspend or revoke that key, and your access to our hosted services (AI features and cloud backup), for material violations of these Terms (e.g., fraud or abuse of AI features). Any refund rights required by applicable law remain unaffected.

3. Free Tier & Premium Subscriptions

3.1 Free Tier

Liber offers a free tier with core library management features at no cost. Core local library management will remain free.

3.2 Premium Billing & Renewals

Premium is not on sale yet — no subscription can currently be purchased and no payment can be taken. The terms in this section will apply from the moment Premium launches; we publish them in advance so you know what you would be agreeing to.

Premium will be offered as a monthly or annual subscription. Payments are securely processed by Paddle.com, our authorized reseller and Merchant of Record. A subscription renews automatically at the end of each billing period unless canceled.

3.3 Cancellation & Refunds

You may cancel at any time to stop future charges: Settings → Premium opens your subscription page with our payment provider, which is where the cancellation is made. Cancellation takes effect at the end of the current billing period. Refunds and your Right of Withdrawal are governed by our Refund Policy.

4. AI Features & Fair Use

Premium includes AI-powered features. We do not use your book content to train AI models. You agree that AI-generated content may be inaccurate or incomplete, and you use it at your own risk. It is provided for informational purposes only and should not be relied upon as professional, legal, medical, or educational advice. To prevent abuse, AI features are subject to automated fair-use quotas. Attempts to bypass these limits will result in your license being suspended or revoked.

5. Cloud Backup & User Content

Premium includes cloud backup functionality. Your data is encrypted on your device before upload. You are solely responsible for the legality of the files you upload and sync. We do not monitor your files. However, you must keep independent local backups. Except where required by mandatory law, we are not responsible for loss of data resulting from factors outside our reasonable control.

6. Intellectual Property

Liber, its code, design, and branding are owned by us. Your eBook files remain yours — we make no claim of ownership over the books or documents in your library.

Third-party software: format conversion currently relies on Calibre's ebook-convert, which is not part of Liber and is not distributed with it. The app either uses the copy you already have installed or offers to download it from its developers, and it remains licensed to you by its own authors under the GNU GPL v3. Removing it only disables conversion; the rest of Liber is unaffected.

7. Warranties and Statutory Rights

For EU/UK Consumers: Under the EU Digital Content Directive (2019/770), the Spanish TRLGDCU, and the UK Consumer Rights Act 2015, we provide a statutory guarantee of conformity for Premium services. If the digital service is defective, you may be entitled to a fix, price reduction, or refund.

General Disclaimer: Subject to your statutory rights above, Liber is provided "AS IS" and "AS AVAILABLE" without additional warranties. We do not guarantee that the software will be entirely error-free or uninterrupted.

8. Limitation of Liability

Nothing in these Terms excludes our liability for death, personal injury caused by our negligence, or fraud. However, to the maximum extent permitted by applicable law, we shall not be liable for any indirect, incidental, or consequential damages, including data loss or business interruption. Our total financial liability shall be limited to the amount you paid for the service in the 12 months preceding the claim.

9. Governing Law & Jurisdiction

These Terms are governed by the laws of Spain. If you are an EU or UK consumer, you additionally enjoy the protection afforded to you by the mandatory provisions of the law of your country of residence, and you may bring legal proceedings in your local courts.

10. Changes to These Terms

We may update these Terms to reflect changes in our services or the law. For material changes, we will provide reasonable advance notice in the app, on this website, and by email to Premium subscribers, at the address associated with their license. Continued use after changes take effect constitutes acceptance.

11. Contact

Questions: support@tryliber.com