化学计量助手隐私政策
Privacy Policy for Stoichiometry: Lab Calc
生效日期 / Effective date: 2026-08-05
The app requires no account, contains no ads, analytics, or tracking, and stores reagent and calculation data on your device.
简体中文
1. 我们不收集的数据
应用不要求注册账户，不包含广告、第三方行为分析或跨应用跟踪功能。开发者不会通过应用服务器收集、上传或存储您的个人信息、试剂资料、试剂图片或计算内容。
2. 本机数据
您录入的试剂名称、化学式、品牌、货号、物性参数、备注和图片保存在设备本机。语言偏好也保存在本机。除非您主动使用系统提供的备份、导出、迁移或分享功能，否则这些数据不会离开您的设备。
您可以在应用内删除单条试剂记录。卸载应用通常会删除应用保存在该设备上的本地数据，因此请在卸载前导出需要保留的试剂库备份。
3. 照片权限
只有在您主动选择试剂图片或保存计算表格图片时，应用才会请求相应的照片访问权限。选中的试剂图片仅用于您创建的本机试剂记录。
4. 应用内购买
自定义试剂库可通过 Apple 应用内购买永久解锁。购买与支付由 Apple 处理。应用只读取用于开通和恢复功能的商品及购买权益状态；开发者不会获取您的银行卡号、支付密码或完整支付账户信息。
5. 数据共享
开发者不会出售您的数据，也不会将应用内的本机内容提供给广告商或数据经纪商。当您主动导出备份或分享图片时，数据将按照您在系统分享界面中的选择交给相应目标。
6. 儿童隐私
应用不以收集儿童个人信息为目的，也不主动收集任何用户的个人信息。
7. 政策更新
如果应用的数据处理方式发生实质变化，我们会更新本政策和生效日期，并在适当位置提供说明。
8. 联系我们
隐私相关问题请联系：cylmio@163.com
English
1. Data We Do Not Collect
The app does not require an account and contains no advertising, third-party behavioral analytics, or cross-app tracking. The developer does not collect, upload, or store your personal information, reagent records, reagent photos, or calculation content on an app server.
2. On-Device Data
Reagent names, formulas, brands, catalog numbers, properties, notes, and photos that you enter are stored on your device. Your language preference is also stored locally. This data does not leave your device unless you actively use system backup, export, migration, or sharing features.
You can delete individual reagent records in the app. Uninstalling the app will normally remove its local data from that device, so export a reagent-library backup before uninstalling if you need to retain it.
3. Photos Permission
The app requests relevant photo access only when you choose a reagent photo or save a calculation table image. A selected reagent photo is used only in the local reagent record you create.
4. In-App Purchases
The custom reagent library can be permanently unlocked through an Apple in-app purchase. Apple processes purchases and payments. The app reads only product and entitlement status needed to unlock or restore the feature. The developer does not receive your card number, payment password, or complete payment-account information.
5. Data Sharing
The developer does not sell your data or provide your on-device app content to advertisers or data brokers. When you actively export a backup or share an image, the data is sent to the destination you select in the system sharing interface.
6. Children's Privacy
The app is not designed to collect personal information from children and does not actively collect personal information from any user.
7. Changes to This Policy
If the app's data-handling practices materially change, this policy and its effective date will be updated and an appropriate notice will be provided.
8. Contact
For privacy questions, contact: cylmio@163.com