Effective: May 12, 2026
By downloading, installing, or using Drowsebook (入梦书, hereafter "the App"), you agree to these Terms of Service. If you do not agree, do not use the App. These Terms apply alongside the Privacy Policy.
Drowsebook is an iPhone application for reading and listening to books that you supply. It supports EPUB, PDF, TXT, MOBI, and AZW3 files (DRM-free only), uses Apple's built-in system voices to read text aloud, and provides a sleep timer, AirPods ±15-second skip, smart PDF filtering, bookmarks, auto-resume, a chapter outline, themed paginated layout, and a small bundled sample-book shelf (Meditations, 銀河鉄道の夜, and Alice's Adventures in Wonderland, all in the public domain). All features run locally on your device; the App does not depend on any remote server.
Except where these Terms expressly say otherwise, the App is distributed through the Apple App Store and is therefore also governed by Apple's Standard End User License Agreement ("Apple Standard EULA"):
https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Where these Terms conflict with the Apple Standard EULA, the term more favourable to you prevails. Provisions concerning Apple's own rights, responsibilities, and indemnities are governed by the Apple Standard EULA.
We grant you a limited, non-exclusive, non-transferable, revocable licence to use the App, on Apple devices that you own or control running iOS 17 or later, as a single user (with Family Sharing enabled on both in-app purchases, members of your Apple Family group may also use the App on their own devices under the same licence terms). You shall not:
The App reads DRM-free files only. You may import a book file into the App if, and only if, the file itself contains no Digital Rights Management technological protection measure (TPM) — for example, a plain EPUB you obtained from Project Gutenberg, Standard Ebooks, an indie author's store, or a manuscript you wrote yourself.
We do not, and will not, provide tools, plug-ins, instructions, or assistance to remove DRM from Kindle, Nook, Apple Books, Google Play Books, Kobo, or any other store-protected format. Stripping DRM is, in many jurisdictions, regulated by anti-circumvention statutes (e.g. 17 U.S.C. § 1201 in the United States, Article 6 of EU Directive 2001/29/EC). If you wish to listen to a book you bought from one of those stores, please consult the rights holder of that book; that conversation is between you and them.
Anything you do import is your own content (see §7). The App neither verifies nor warrants the legality of how you obtained an imported file — that responsibility rests with you.
The App offers two non-consumable in-app purchases:
Both purchases are non-subscription; there are no recurring charges, no auto-renewals, and no paywalled add-ons sold separately. We may adjust the price of new purchases at any time; previously completed purchases continue to be honoured at no additional charge. All purchases are handled by Apple's StoreKit 2 framework; refunds are governed by Apple's standard refund policy and must be requested through Apple, not us.
Books you import, bookmarks you create, and any other content you put into the App belong to you. We neither view nor are able to view this content; it is stored only inside the App's sandbox on your device (and optionally, for reading-position cursor only, in your own private CloudKit container as described in the Privacy Policy).
The App ships with three sample books, each in the public domain in every major jurisdiction:
These bundled files are provided as-is for your convenience. If you delete them, the App keeps working normally.
The App is provided on an "AS IS" and "AS AVAILABLE" basis, without warranties of any kind, express or implied, including but not limited to warranties of merchantability, fitness for a particular purpose, or non-infringement. The App's text-to-speech output is generated by Apple's system voices; the developer makes no warranty about the pronunciation, accuracy, or naturalness of any particular language, voice, or passage.
To the fullest extent permitted by law, the developer and its affiliates shall not be liable for any indirect, incidental, special, consequential, or punitive damages arising from or related to your use of, or inability to use, the App, even if advised of the possibility of such damages. In any event, the developer's total cumulative liability for the App shall not exceed the amount you paid Apple to obtain the App and its in-app purchases.
This licence terminates automatically if you breach these Terms; you may also terminate at any time by uninstalling the App. The "shall not" obligations in §4 and §§9–11 survive termination.
These Terms are governed by, and construed in accordance with, the laws of the Hong Kong Special Administrative Region (excluding its conflict-of-laws rules). Any dispute arising out of or in connection with these Terms shall first be settled through good-faith negotiation. If negotiation fails, the dispute shall be referred to and finally resolved by arbitration administered by the Hong Kong International Arbitration Centre (HKIAC) under its rules then in force, in Hong Kong, in English and Chinese. Where you are a consumer, the foregoing arbitration clause does not deprive you of any non-waivable litigation rights granted by your local consumer-protection law.
We may update these Terms from time to time. Material changes will update the "Effective" date at the top and be announced prominently inside the App; continued use after a change constitutes acceptance. All historical versions are accessible in the GitHub commit history.
This English text is the authoritative version of these Terms. Translations may be provided in the future for convenience but, where they differ, the English text controls.