SleepMaster (睡眠无忧) is a fully offline white-noise and breathing app for personal relaxation, focus, and better sleep. All audio content is bundled with the app and played locally; the app provides no streaming, account, or community features.
You are granted a non-exclusive, non-transferable license to use the app for personal, non-commercial purposes only.
This app does not constitute medical advice. If you have sleep disorders or other health concerns, please consult a qualified physician.
The app is provided "as is" without warranty of any kind. To the maximum extent permitted by law, the developer disclaims all implied warranties including merchantability, fitness for a particular purpose, and non-infringement.
The source code, UI design, icons, text content, and other original materials of this app are owned by the developer and protected by applicable intellectual property laws. No individual or entity may copy, modify, distribute, rent, sell, or use them for commercial purposes without the developer's prior written permission.
The white-noise and nature audio assets in this app were compiled, edited, and produced by the developer, and their copyright and related rights belong to the developer. No individual or entity may copy, extract, distribute, sell, or use them for any commercial purpose without the developer's prior written permission.
All data generated while using this app — including sound mixes, favorites, custom sound order, theme choices, timer settings, and volume preferences — is created and stored on your device, belongs to you, and is never transmitted to the developer. Because we hold no copy of this data, we cannot recover, restore, or transfer it on your behalf. Deleting the app deletes the data permanently.
If you believe any content in this app infringes your legitimate rights, please contact us using the method in Section 9. We will address it promptly in accordance with applicable law.
These terms grant you no intellectual property license beyond what is expressly stated herein.
We reserve the right to update these terms. Material changes will be reflected by the "Last updated" date on this page; continued use of the app after such a change constitutes acceptance of the new terms.
If you violate these terms, we may terminate your access. You may stop using the app at any time by deleting it. Deleting the app also removes your Premium entitlement from this device, though you may restore it later from the App Store if you choose to reinstall.
If you have any questions, please contact: mjxlzhang@sina.com