Fastutle Modu Viewer

Modu Viewer Terms of Use

Effective date Previous version

These terms set out the conditions for using the Modu Viewer app (the “App”) provided by Fastutle (“we” or “us”). By downloading or using the App you agree to these terms. The terms of the store you downloaded the App from (App Store, Google Play) also apply.

1. The service

  1. The App is a viewer app that opens comic books (ZIP, CBZ, RAR, CBR, 7z), PDFs and text and document files on your device. It offers library organisation, read-aloud, the optional Natural voice, importing files from Google Drive, and data export and import (backup).
  2. You can use the App without signing up. We do not run any server that receives or stores your files; your files are processed on your device.
  3. The features available to you may differ by device, operating system and app version.

2. Use of the App and prohibited conduct

  1. We grant you a non-exclusive, non-transferable right to use the App for your personal use in accordance with these terms.
  2. You must not:
    • use the App in a way that violates the law;
    • use the App to unlawfully copy or distribute files that infringe copyright or other rights of others;
    • reverse engineer, decompile or disassemble the App, except where the law allows it;
    • circumvent the App’s security features, or interfere with the normal operation of the App or the services it connects to;
    • copy or modify the App to distribute or sell it;
    • use the App in a way that violates the terms of third-party services such as Google Drive.
  3. If your prohibited conduct causes damage to us or to others, you may be liable for it under the law.

3. Intellectual property

  1. The rights in the App’s software, design, name, logo and text belong to us or to their rightful owners. These terms give you the right to use the App; they do not transfer those rights to you.
  2. Open-source components included in the App are governed by their own licences. The list and the full licence texts are available in the App and on the open-source licences page of this site.

4. Your content

  1. The files you import into the App (comic books, PDFs, documents and so on) and the backup files the App creates are yours, and you are responsible for their contents and for how you use them. You must have the right to view and use the files you import.
  2. We do not receive or view your files (except for the English words sent by natural reading and the error logs you send yourself, as described in the Privacy Policy), and we do not review or vouch for their contents.
  3. Imported files are stored as copies on your device. Deleting the App, or deleting a book from the library, also deletes that copy and its reading position and related data. We recommend that you keep the originals of important files and your backup files separately.

5. Third-party services

  1. The App uses the following third-party services, each governed by its provider’s terms and privacy policy.
    • Google Drive (optional): downloads the files you pick to your device. Your use of your Google account and Drive is subject to the Google Terms of Service.
    • Google Firebase: app usage statistics and crash reports
    • Hugging Face (optional): downloading the Natural voice model
    • Your device’s text-to-speech (TTS) engine: read-aloud
    • App Store, Google Play: distribution and updates of the App
  2. We do not operate these third-party services. If a service changes or stops, the App features that rely on it may not work.
  3. How the App handles information is described in the Privacy Policy.

6. Natural Voice (AI speech model)

The English text of this section governs; the Korean text is a reference translation. This is an exception to the note at the end of this page: for this section (Natural Voice) only, the English text below prevails over the Korean version of these terms.

Natural Voice (AI speech model)

The app's optional "Natural voice" reads text aloud with an AI speech model, Supertonic 3 by Supertone Inc., licensed under the BigScience Open RAIL-M License. The speech it produces is machine generated. By downloading or using the Natural voice you agree not to use it, or any output or derivative of it:

(a) In any way that violates any applicable national, federal, state, local or international law or regulation;
(b) For the purpose of exploiting, harming or attempting to exploit or harm minors in any way;
(c) To generate or disseminate verifiably false information and/or content with the purpose of harming others;
(d) To generate or disseminate personal identifiable information that can be used to harm an individual;
(e) To generate or disseminate information and/or content (e.g. images, code, posts, articles), and place the information and/or content in any context (e.g. bot generating tweets) without expressly and intelligibly disclaiming that the information and/or content is machine generated;
(f) To defame, disparage or otherwise harass others;
(g) To impersonate or attempt to impersonate (e.g. deepfakes) others without their consent;
(h) For fully automated decision making that adversely impacts an individual's legal rights or otherwise creates or modifies a binding, enforceable obligation;
(i) For any use intended to or which has the effect of discriminating against or harming individuals or groups based on online or offline social behavior or known or predicted personal or personality characteristics;
(j) To exploit any of the vulnerabilities of a specific group of persons based on their age, social, physical or mental characteristics, in order to materially distort the behavior of a person pertaining to that group in a manner that causes or is likely to cause that person or another person physical or psychological harm;
(k) For any use intended to or which has the effect of discriminating against individuals or groups based on legally protected characteristics or categories;
(l) To provide medical advice and medical results interpretation;
(m) To generate or disseminate information for the purpose to be used for administration of justice, law enforcement, immigration or asylum processes, such as predicting an individual will commit fraud/crime commitment (e.g. by text profiling, drawing causal relationships between assertions made in documents, indiscriminate and arbitrarily-targeted use).

The full license text (BigScience Open RAIL-M License, dated August 18, 2022) is in the app under About › Licenses, as "Supertonic 3 model (Supertone Inc.)".

7. Disclaimer of warranties and limitation of liability

  1. The App is provided as is. We do not warrant that the App will work without interruption or error on every device, that it can open every file, or that it fits any particular purpose of yours.
  2. We are not liable for the following damage, except damage caused by our intent or gross negligence:
    • damage caused by events beyond our control, such as natural disasters or network failures;
    • damage caused by problems with your device, its operating system or third-party services;
    • damage caused by your breach of these terms or by a failure to look after your device and data;
    • disputes between you and others over the contents of files you import or how you use them.
  3. This section does not limit the rights the applicable law guarantees you, and it does not apply to any liability of ours that the law does not allow us to exclude.

8. Changes and termination

  1. We may add, change or remove features of the App through updates.
  2. When we change these terms, we post the changes and their effective date on this page at least 7 days before they take effect, or at least 30 days before for changes that are unfavourable to you or otherwise significant. If you do not agree to the changed terms, you can stop using the App and delete it; if you keep using the App after the effective date, you are deemed to have agreed to the changed terms.
  3. We may stop distributing or updating the App, and if we do, we will announce it on this site in advance where possible.
  4. You can stop using the App at any time by deleting it.

9. Governing law and jurisdiction

  1. These terms are governed by the laws of the Republic of Korea.
  2. We will first try to resolve any dispute about the App amicably through the contact below. If legal action is needed, it is brought before the court that has jurisdiction under the Civil Procedure Act of the Republic of Korea.
  3. If the consumer protection laws of the country where you live give you mandatory rights that are more favourable to you, this section does not exclude them.

10. Contact

Please send questions about these terms to:

  • Operator: Fastutle (business registration number 502-37-52922)
  • Email: [email protected]