Calendar Terms of Use
Effective date: September 30, 2026
Provider: the developer of 日历 / Calendar ("we"), Shenzhen, Guangdong, China
Support email: qbj@outlook.com
Welcome to “日历 / Calendar.” Please read these terms and the Privacy Policy before using the app. The Android and iOS apps and official website provide event management, holidays, the Chinese lunar calendar and almanac, solar terms, moon information, and installation information. Local events do not require a developer account. You choose whether to connect an outside calendar service. This release has no in-app usage analytics.
1. Features and acceptable use
You may create and manage local events, choose to read calendars already synchronized on your device, and add Exchange EWS, CalDAV, or ICS sources where supported by the respective service. Some features require network access, device permission, or a third-party account. If you decline permission, the related feature may be unavailable while the basic local calendar remains usable. The capabilities, write scope, and known limits in the released app govern a particular version.
You must be authorized to use any account, calendar, subscription URL, or attachment you connect. Check invitee addresses, event content, and the destination calendar before saving. Saving to an external service or adding invitees may cause that service to synchronize data or send invitations. Do not use the app to access information without authorization, distribute malicious content, or violate applicable law or a service provider’s rules.
2. Your content and other services
You retain your rights in event content you enter. These terms permit the app to process it on your device as needed for your actions and send necessary data to a system calendar, remote calendar, or sharing destination you select. The provider receives no right under these terms to use your events for advertising.
Other account, calendar, document, and public holiday data providers may apply their own terms and privacy rules. Review those rules before connecting. Removing a connection from this app does not close that account or delete events already held by the other service.
Check the version and checksum shown on the official website when downloading its Android APK. A download request does not prove that the file finished downloading or installed successfully. This release has no in-app usage analytics entry and sends no first-party usage events. See the Privacy Policy for requests concerning records from an older release.
3. Accuracy and reminders
Governments can change holidays and make-up workdays, and public data sources may lag. The lunar calendar, almanac, zodiac, moon phase, moonrise, moonset, and lunar direction are calendar information; astronomical figures are estimates based on time, place, and algorithms. Follow official government notices for statutory leave. Use a specialist instrument for navigation, observation, or any activity requiring professional precision. Operating-system notification permissions, battery controls, account synchronization, network access, and third-party availability can affect reminders and synchronization.
4. Open-source materials and intellectual property
App code, original icons, and interface content belong to their lawful rights holders. Third-party code, icons, and holiday data retain their respective open-source licenses. Licenses and sources appear under “Settings → Open-source licenses.” References to third-party services do not imply their endorsement of this app.
5. Changes, stopping use, and liability
We may update the app to fix defects or security issues and preserve compatibility. We will explain material changes affecting your choices or data handling as appropriate. You may stop using and uninstall the app at any time. Delete data held by your device or a third-party calendar in the relevant place.
To the extent permitted by applicable law, we work to provide a reliable tool but do not promise that external data, servers, reminders, or synchronization will always be accurate or uninterrupted. Nothing here excludes or limits consumer rights or liability that cannot legally be excluded. You may first contact qbj@outlook.com about a dispute. Unresolved disputes are handled under applicable law without removing mandatory statutory rights.