Introduction引言
This Privacy Policy describes how I collect, use, and manage your information when you use the Guzheng application. I am an independent developer and take your privacy seriously. 本隐私政策说明在你使用「古筝」应用时，我如何收集、使用与管理你的信息。我是一名独立开发者，十分重视你的隐私。
Guzheng is a local application that runs entirely on your device. I do not store, process, or transmit any of your personal data to external servers. Your information remains on your device at all times. 「古筝」是一款本地应用，完全在你的设备上运行。我不会将你的任何个人数据存储、处理或传输至外部服务器；你的信息始终留在你的设备上。
By using the Service, you agree to the collection and use of information in accordance with this Privacy Policy. 使用本服务即表示你同意按照本隐私政策收集与使用相关信息。
- No server-side data storage不在服务器端存储任何数据
- No user accounts are created不创建任何用户账号
- All processing happens on your device所有处理均在你的设备上完成
- No personal data collection beyond anonymous analytics除匿名使用分析外，不收集个人数据
Definitions定义
The following terms have the meanings defined below: 下列术语的含义如下：
Collection of data数据的收集
Local data — on your device only本地数据——仅存于你的设备
Guzheng is designed to work completely offline. All your data, preferences, recordings and imported files remain stored only on your device. I have no access to any of this information. 「古筝」被设计为完全离线可用。你的全部数据、偏好设置、录音与导入的文件都只保存在你的设备上，我无法访问其中任何信息。
Google AnalyticsGoogle Analytics
I use Google Analytics to understand how the application is used and to improve the experience. This is the only external data collection that occurs. It collects the following non-personal information: 我使用 Google Analytics 了解应用的使用情况并改进体验。这是唯一一处对外的数据收集，所收集的均为非个人信息：
- Screens and features you visit or use你访问或使用的界面与功能
- Time spent in different sections of the app在应用不同部分停留的时间
- Device type and operating system设备型号与操作系统
- Approximate location (country or region level)大致位置（国家或地区级别）
- Language settings语言设置
This data is processed by Google according to their own privacy policy. I do not collect personally identifiable information through Google Analytics; the data I see is anonymised and aggregated. 上述数据由 Google 依其隐私政策处理。我不会通过 Google Analytics 收集可识别个人身份的信息；我所看到的数据均为匿名且聚合后的结果。
I do not collect emails, phone numbers, names, passwords, account information, or any personal identifiers — only anonymous usage analytics. 我不会收集电子邮件、电话号码、姓名、密码、账号信息或任何个人标识符，仅有匿名的使用分析数据。
Use of your data数据的使用
The data collected is used for the following purposes: 所收集的数据用于以下目的：
To improve the application改进应用
Analytics tell me which features are used most and where players spend their time, which helps me prioritise improvements and fixes. 分析数据可以让我了解哪些功能最常被使用、用户的时间花在何处，从而更好地安排改进与修复的优先级。
To ensure quality of service保障服务质量
The same data helps me monitor performance across different devices and regions, so Guzheng works well for everyone. 同样的数据帮助我监测应用在不同设备与地区的表现，使「古筝」能为每一位用户稳定运行。
For legal compliance遵守法律
If required by law or regulation, I may use anonymised data to respond to valid requests from authorities. 在法律法规要求时，我可能使用匿名数据回应有关机关的合法请求。
Data retention数据留存
Local data本地数据
All data stored on your device is under your complete control. You can delete it at any time by removing individual items in the app, clearing app data, or uninstalling the app. 存储在你设备上的所有数据完全由你掌控。你可以随时在应用内删除单个条目、清除应用数据，或直接卸载应用。
Analytics data分析数据
- Google Analytics retains data according to its own retention settings; by default, user activity data is kept for 14 months. Google Analytics 按其自身的留存设置保留数据，默认情况下用户活动数据保留 14 个月。
- I do not store or retain any personally identifiable information — only anonymised, aggregated reports. 我不存储或保留任何可识别个人身份的信息，只有匿名的聚合报告。
For more on how Google handles data, see Google’s privacy policy. 关于 Google 如何处理数据，请参阅 Google 隐私政策。
Security of your data数据安全
Guzheng processes all data on your device, which means your information is protected by your device’s own security measures — device lock, encryption and so on. Because I have no access to your local data, there is no risk of a breach on my side. 「古筝」在你的设备上处理所有数据，因此你的信息受设备自身的安全机制（锁屏、加密等）保护。由于我无法访问你的本地数据，也就不存在我这一侧的数据泄露风险。
Analytics data is transmitted securely using encryption. 分析数据在传输过程中经过加密保护。
Your privacy rights你的权利
Access and control访问与控制
You have full control over all data stored on your device and can access, modify or delete it at any time. 你对设备上存储的所有数据拥有完全的控制权，可随时访问、修改或删除。
Opting out of analytics拒绝分析
You can opt out of analytics tracking through your device settings, or in the app’s settings where this option is offered. 你可以通过设备设置，或在应用内提供该选项的设置中，拒绝分析追踪。
Deletion删除
You can delete all app data at any time by clearing app data or uninstalling Guzheng. Once deleted, the data cannot be recovered. 你可以随时通过清除应用数据或卸载「古筝」来删除全部数据。删除后数据将无法恢复。
Third-party links第三方链接
Guzheng may contain links to other websites or applications that are not operated by me. If you follow such a link, you will be taken to that third party’s site, and I strongly advise you to review its privacy policy. 「古筝」中可能包含指向非本人运营的网站或应用的链接。若你点击此类链接，将前往该第三方的站点；我强烈建议你先阅读其隐私政策。
I have no control over, and assume no responsibility for, the content or practices of any third-party sites or services. 我无法控制、亦不对任何第三方网站或服务的内容与做法承担责任。
Changes to this policy政策变更
I may update this Privacy Policy from time to time. Changes will be posted on this page along with a new “last updated” date, and take effect once posted. 我可能会不时更新本隐私政策。变更将连同新的「最后更新」日期一并发布于本页，并自发布之时生效。
You are advised to review this page periodically. 建议你定期查看本页面。
Contact联系方式
If you have any questions about this Privacy Policy, please get in touch: 如对本隐私政策有任何疑问，欢迎与我联系：
- Email: impeccablepiano@gmail.com