Terms of Use
Last updated: 10 December 2025
1. Scope and Provider
These Terms of Use ("Terms") govern the use of the mobile reading application "Seriatim Reader" and any associated websites or pages that link to these Terms (together, the "Service").
The Service is provided by:
Invisible Hours UG (haftungsbeschränkt)
Belziger Straße 69-71
10823 Berlin
Germany
("Invisible Hours", "we", "us", "our").
By downloading, installing, accessing or using the Service, you ("User", "you") agree to be bound by these Terms.
If you do not agree to these Terms, you must not use the Service.
2. Description of the Service
The Service is a mobile reading app that allows you to import compatible ebook files (such as EPUB, PDF or text files), and read them sentence by sentence using swipe / tap gestures, including optional features such as highlights, notes, collections and basic discovery of freely available online content (e.g. public-domain ebooks or academic papers).
The Service is designed as a local-first, privacy-friendly reader: your imported content, reading progress and highlights are stored locally on your device. Network connections are used only for optional discovery / download functions and for any updates you choose to install.
3. Eligibility
The Service is intended for individuals 16 years or older.
If you are under 18, you may only use the Service with consent and under supervision of a parent or legal guardian who accepts these Terms on your behalf.
By using the Service, you confirm that you meet these requirements.
4. Relationship with App Stores
The Service may be distributed through third-party app stores (for example, Apple App Store). You must also comply with their applicable terms and conditions.
Those third parties are not parties to this contract and are not responsible for maintaining or providing the Service. However, they may be third-party beneficiaries of some provisions (for example, intellectual-property protections).
5. License to Use the App
Subject to your compliance with these Terms, we grant you a non-exclusive, non-transferable, revocable license to download and use the app on your compatible device for your personal, non-commercial use only.
You may not:
- copy, distribute or make the app available to third parties, except as allowed by normal app-store functions (e.g. family sharing);
- rent, lease, sublicense or otherwise transfer the app or this license;
- reverse engineer, decompile, disassemble or attempt to derive the source code, except to the limited extent expressly permitted by mandatory law;
- circumvent any security or technical protection measures of the app.
We may revoke this license at any time where you materially breach these Terms.
6. Accounts
At the time of this version of the Terms, the Service can be used without creating a user account. All reading data is stored locally on your device.
If we introduce optional accounts in the future, we will provide additional information and may require you to accept updated terms.
7. Fees, In-App Purchases
The core Service is currently offered free of charge.
We reserve the right to introduce paid features, subscriptions or one-time purchases in the future. If we do so, we will clearly inform you about the price, payment terms and any additional conditions before you complete a purchase.
Any purchases made through an app store are processed by the respective app-store provider; their terms and refund policies may apply.
8. User Content and Intellectual Property Rights
8.1 User Content
"User Content" means any ebooks, documents, text, notes, highlights, metadata or other material that you import into or create within the Service.
You remain the owner of your User Content.
By importing or creating User Content, you confirm that:
- you have all necessary rights, licences and permissions to use such content in the Service; and
- your use of the content in the Service does not infringe any third-party rights (e.g. copyright, neighbouring rights, privacy or other rights).
You are solely responsible for your User Content. We do not generally access or review your locally stored content.
8.2 Our Intellectual Property
All rights in and to the Service (including but not limited to software, design, user interface, logos, trademarks, and documentation) are owned by Invisible Hours or its licensors.
Except for the limited personal license granted above, these Terms do not grant you any rights to our intellectual property.
You must not remove, alter or obscure any copyright, trademark or other proprietary notices from the app.
9. Acceptable Use
You may use the Service only in compliance with applicable law and these Terms. In particular, you must not:
- use the Service in a way that violates applicable laws or regulations, including copyright laws;
- use the Service to distribute or access illegal content or content that is hateful, defamatory, harmful or otherwise unlawful;
- attempt to interfere with or compromise the integrity or security of the app, our servers or networks;
- upload or distribute malware, spyware, or other malicious code;
- attempt to gain unauthorized access to the Service or to other users' data;
- use automated systems or scripts to scrape, index or otherwise systematically extract data from the Service (except where allowed by law and in accordance with our robots and rate limits, if any).
We may take appropriate measures against violations, including blocking access to the Service, where this is reasonably necessary and proportionate.
10. Third-Party Content and Services
The Service may allow you to discover, search or download third-party content, such as public-domain ebooks (e.g. from Project Gutenberg) or academic papers (e.g. from arXiv), and may rely on APIs or websites provided by third parties.
Those third parties are solely responsible for their content and services. Their own terms and privacy policies may apply.
We have no control over and do not assume liability for third-party websites or services.
11. Availability and Changes to the Service
We aim to keep the Service available and functioning, but we do not promise uninterrupted availability. Maintenance, updates or technical issues may temporarily affect use.
We may modify, update, limit or discontinue all or part of the Service, provided such changes are reasonable for users, e.g. to improve performance, security or usability.
If a change would significantly affect your rights or the core functionality of the Service, we will notify you in advance where reasonably possible (for example, via in-app notice or on our website).
12. No Specific Advice or Guarantees about Content
The Service is a tool for reading content that you or third parties provide. We do not curate or control that content.
Content available through the Service (e.g. books, papers) is not professional advice of any kind (legal, medical, financial or otherwise). You must not rely on such content as a substitute for professional advice.
We do not warrant the accuracy, completeness or suitability of any third-party content.
13. Warranties and Disclaimers
The Service is provided on an "as is" and "as available" basis.
To the extent permitted by applicable law, we do not give any express or implied warranty regarding the Service, including but not limited to fitness for a particular purpose, non-infringement or availability.
Mandatory consumer rights under German and EU law remain unaffected.
14. Limitation of Liability
We are liable without limitation for damage caused by intent or gross negligence, as well as for injury to life, body or health.
In cases of slight negligence, we are only liable for breach of essential contractual obligations ("cardinal obligations"), i.e. obligations which must be fulfilled for the contract to be properly performed and on which you regularly rely. In such cases, our liability is limited to the typical, foreseeable damage.
Any further liability is excluded to the extent permitted by law.
Your statutory rights under consumer protection laws remain unaffected.
15. Indemnification
Where you use the Service in a way that is unlawful or violates these Terms, and this causes us damage or triggers third-party claims, you agree—within the limits of applicable law—to indemnify us against such claims and any reasonable costs (e.g. legal fees) arising from your breach.
16. Changes to these Terms
We may amend these Terms in the future, for example to reflect changes in law or in the Service.
We will inform you of material changes in an appropriate manner (e.g. in-app notice, website, email if available).
If you do not agree with the updated Terms, you must stop using the Service. Continued use after the effective date of changes will be deemed acceptance of the new Terms.
17. Governing Law and Dispute Resolution
These Terms are governed by the laws of the Federal Republic of Germany, without regard to conflict-of-law rules.
If you are a consumer residing in the EU/EEA, mandatory consumer protection laws of your country of residence remain applicable.
Where you are a merchant (Kaufmann) under German law, the exclusive place of jurisdiction is Berlin. For consumers, the statutory rules on jurisdiction apply.
18. Contact
For questions about these Terms, please contact:
Invisible Hours UG (haftungsbeschränkt)
Belziger Straße 69-71
10823 Berlin, Germany
Email: mymeals@invisiblehours.net