Last updated: August 28, 2026
SkyLens Star is an augmented-reality stargazing app. This policy explains what data it touches and where that data goes. In plain language: the app runs entirely on your device, has no servers, no accounts, and sends nothing anywhere.
SkyLens Star has no backend. It makes no network requests of any kind while you use it. There is no account to create, nothing to sign in to, and no data of yours ever leaves your iPhone.
The app needs camera access to show the live view that star labels are drawn over. The camera feed is displayed on screen in real time and nothing more — it is never recorded, never saved to your photo library, never analyzed, and never transmitted. Closing the app ends the feed.
The app needs your approximate location because which stars are above you depends entirely on where on Earth you are standing. Your coordinates are used only for on-device astronomical calculation, in memory, for as long as the app is open. They are not stored, not logged, and not sent anywhere. If you decline location permission, the app falls back to a default location and keeps working — the labels will simply be wrong for where you actually are.
The app reads the device's gyroscope, accelerometer and magnetometer to know which way you are pointing the phone. These readings are used only to aim the sky overlay and are never stored or transmitted.
One number: the manual compass-offset value you set in the Calibration screen, saved so it survives a restart. That is the entirety of SkyLens Star's persistent storage. Deleting the app removes it.
SkyLens Star contains no advertising SDKs, no analytics SDKs, no crash-reporting services, and no tracking of any kind. It does not use the Advertising Identifier (IDFA) and does not ask for App Tracking Transparency permission, because there is nothing to track.
If you have "Share iPhone Analytics" enabled in iOS Settings, Apple may share aggregated, anonymized crash and usage data with developers. This is Apple's own mechanism, not ours — we can only ever see aggregate numbers, never individual users. You can opt out in Settings → Privacy & Security → Analytics & Improvements.
Object descriptions shown in the detail cards are derived from Wikipedia and licensed under CC BY-SA 4.0. They were downloaded once when the app was built and ship inside the app as a static file — the app does not contact Wikipedia at runtime.
The app uses the open-source SwiftAA astronomical library. It is a pure calculation library and has no network or data-collection behavior.
SkyLens Star does not collect information from anyone, including children. There is no user-generated content, no messaging, and no external links other than the Wikipedia attribution link on each detail card.
If this policy materially changes, we will update the "Last updated" date at the top of this page.
Questions? Email support@help4uu.com.
最后更新：2026 年 8 月 28 日
SkyLens Star 是一款 AR 观星 App。本政策说明 App 会用到哪些数据、这些数据去了哪里。一句话概括：App 完全在你的设备上运行，没有服务器、没有账号，不向任何地方发送任何数据。
SkyLens Star 没有后端服务。使用过程中它不发起任何网络请求。无需注册账号，无需登录，你的任何数据都不会离开你的 iPhone。
App 需要相机权限，用于显示星体标注所叠加的实时画面。相机画面仅实时显示在屏幕上，不录制、不保存到相册、不做任何分析、不上传。关闭 App 即结束。
App 需要你的大致位置，因为你头顶有哪些星星完全取决于你站在地球上的哪个位置。坐标仅在 App 运行期间于内存中用于本地天文计算，不存储、不记录、不发送到任何地方。如果你拒绝位置权限，App 会退回到一个默认位置继续工作 —— 只是标注的位置对你所在地而言不准确。
App 读取设备的陀螺仪、加速度计和磁力计，用于判断手机的朝向。这些读数仅用于对准星空叠加层，不存储、不上传。
只有一个数字：你在「校准」界面设置的手动方位偏移值，保存下来是为了重启后仍然生效。这就是 SkyLens Star 全部的持久化存储。删除 App 即一并删除。
SkyLens Star 不含任何广告 SDK、分析 SDK、崩溃上报服务，也不做任何形式的追踪。不使用广告标识符（IDFA），不请求「App 跟踪透明度」权限 —— 因为没有任何东西可追踪。
如果你在 iOS 设置中开启了「与开发者共享 iPhone 分析」，Apple 会将聚合、匿名化的崩溃和使用数据分享给我们。这是 Apple 自己的机制，不是我们的 —— 我们只能看到汇总数字，看不到个人用户。你可以在设置 → 隐私与安全 → 分析与改进中关闭。
详情卡片中的天体介绍来自维基百科，以 CC BY-SA 4.0 协议授权。这些内容在 App 构建时一次性抓取，作为静态文件打包在 App 内 —— 运行时不会连接维基百科。
App 使用了开源天文算法库 SwiftAA。它是纯计算库，没有任何网络或数据收集行为。
SkyLens Star 不向任何人收集信息，儿童也不例外。App 内没有用户生成内容、没有消息功能，除了详情卡片上的维基百科署名链接外没有其他外部链接。
如本政策有实质性变更，我们会更新页面顶部的「最后更新」日期。
有疑问请邮件联系 support@help4uu.com。