Thank you for using LinkReady's mobile applications. We take your privacy protection very seriously. This privacy policy aims to explain how we collect, use, store, and protect your personal information.
Core Commitment: All data from our applications is stored locally on your device and will not be uploaded to our servers. Your privacy data is completely under your control.
一、适用范围
1. Scope of Application
本隐私政策适用于 LinkReady 开发的以下 iOS 应用程序：
This privacy policy applies to the following iOS applications developed by LinkReady:
📚 生活系列
📚 Lifestyle Series
你的书房
YourBooks
私人图书馆管理助手
Personal Library Manager
已发布Released
🔧 工具系列 - TFC 机械工程计算器
🔧 Tools Series - TFC Mechanical Engineering Masters
公差配合计算器
Tolerance Master
机械公差查询计算工具
Mechanical tolerance query and calculation tool
已发布Released
键槽花键计算器
Keyway Master
键槽与花键参数计算工具
Keyway and spline parameter calculation tool
已发布Released
螺纹扭矩计算器
Thread Master
螺纹参数与扭矩计算工具
Thread parameter and torque calculation tool
已发布Released
齿轮参数计算器
Gear Master
齿轮几何参数计算工具
Gear geometric parameter calculation tool
开发中In Dev
轴承寿命计算器
Bearing Master
轴承寿命计算工具
Bearing life calculation tool
开发中In Dev
钣金展开计算器
Sheet Metal Master
折弯展开计算工具
Bend allowance calculation tool
开发中In Dev
螺栓强度计算器
Bolt Master
螺栓强度计算工具
Bolt strength calculation tool
开发中In Dev
二、信息收集
2. Information Collection
2.1 我们收集的信息
2.1 Information We Collect
我们的应用程序可能会收集以下类型的信息：
Our applications may collect the following types of information:
Usage data: Free quota usage count, used to determine if payment is required for unlock. This data is synced between your devices via iCloud Key-Value Storage.
购买记录：通过 Apple App Store 进行的内购记录，由 Apple 管理，我们不存储您的支付信息。
Purchase records: In-app purchase records through Apple App Store, managed by Apple. We do not store your payment information.
2.2 我们不收集的信息
2.2 Information We Do Not Collect
我们不收集您的个人身份信息（姓名、邮箱、电话等）
We do not collect your personal identification information (name, email, phone number, etc.)
我们不收集您的设备标识符
We do not collect your device identifiers
我们不收集您的地理位置信息
We do not collect your location information
我们不收集您的浏览历史或使用习惯
We do not collect your browsing history or usage habits
All your data (book information, calculation records, etc.) is stored locally on your device, managed using the SwiftData framework provided by iOS. This means:
数据完全由您掌控
Data is completely under your control
我们无法访问您的数据
We cannot access your data
卸载应用后数据将被删除
Data will be deleted when you uninstall the application
3.2 iCloud 同步
3.2 iCloud Sync
部分数据（如免费额度计数）通过 iCloud Key-Value Storage 在您的设备间同步。此同步由 Apple 管理，数据经过加密传输。
Some data (such as free quota count) is synced between your devices via iCloud Key-Value Storage. This sync is managed by Apple, and data is transmitted with encryption.
3.3 数据备份
3.3 Data Backup
「你的书房」支持将书籍数据导出为 ZIP 文件，您可以自行备份到任何位置。我们建议您定期备份重要数据。
"My Library" supports exporting book data as a ZIP file, which you can back up to any location. We recommend backing up important data regularly.
四、第三方服务
4. Third-Party Services
4.1 Apple 内购服务
4.1 Apple In-App Purchase Service
应用内购买功能由 Apple App Store 提供，支付处理由 Apple 管理。请参阅 Apple 隐私政策。
In-app purchase functionality is provided by Apple App Store, and payment processing is managed by Apple. Please refer to Apple's Privacy Policy.
4.2 书籍信息查询
4.2 Book Information Query
「你的书房」在扫描条形码时，会向第三方 API 服务查询书籍信息。这些服务仅接收 ISBN 号码，不接收任何个人信息。
"My Library" queries third-party API services for book information when scanning barcodes. These services only receive ISBN numbers and no personal information.
五、数据安全
5. Data Security
我们采取以下措施保护您的数据安全：
We take the following measures to protect your data security:
所有本地数据使用 iOS 系统级加密保护
All local data is protected using iOS system-level encryption
iCloud 同步数据经过 Apple 标准加密
iCloud sync data is encrypted using Apple's standard encryption
应用不要求不必要的系统权限
Applications do not request unnecessary system permissions
Our applications are not directed at children under 13. We do not intentionally collect personal information from children. If you discover that your child has used our application without your consent, please contact us.
七、您的权利
7. Your Rights
您对您的数据拥有完全控制权：
You have complete control over your data:
查看数据：您可以在应用中查看所有存储的数据
View data: You can view all stored data in the application
导出数据：您可以将数据导出为文件进行备份
Export data: You can export data as files for backup
删除数据：您可以删除单条记录或清空所有数据
Delete data: You can delete individual records or clear all data
卸载应用：卸载应用将删除所有本地数据
Uninstall application: Uninstalling the application will delete all local data
We may update this privacy policy from time to time. The updated policy will be posted on this page, with the update date displayed at the top. Major changes will be notified to you through in-app notifications.
九、联系我们
9. Contact Us
如果您对本隐私政策有任何疑问或建议，请通过以下方式联系我们：
If you have any questions or suggestions about this privacy policy, please contact us through the following methods: