格物 Whence

把身边设备的真实来源摊开给你看

常见问题

为什么一个查硬件的 App 要定位权限？

这是 iOS 的系统规定：App 必须持有定位授权，才被允许读取当前连接 Wi-Fi 的名称与 BSSID。 这是平台限制，不是本 App 的选择。格物不获取你的坐标、不存储、不上传。 详见隐私政策。

为什么读不到电池健康度？

iOS 不向第三方 App 开放电池健康度、循环次数与设计容量。这不是「还没做」，是做不到。 电脑上的工具（如 3uTools）能读到，是因为它们通过 USB 走了完全不同的诊断通道，App 内部触碰不到。

屏幕和电池的实际供应商同理不可读。App 里的「供应链参考」区块只是该型号的 公开报道范围，标记为「推测」并明确弱化——任何 App 声称能在 iPhone 上直接检测这些信息，都不成立。

为什么接入点和网关显示成两台不同的设备？

这通常不是错误，而是有用的信息。它说明你处在 Mesh 组网、AC + 瘦 AP、无线中继， 或者光猫加自购路由的环境里。展开「完整证据链」可以看到每一条依据。

为什么查不到厂商？

如果 BSSID 是本地管理地址（访客网络、手机热点、Mesh 子节点常见），它就不在 IEEE 注册库里， 查不到是必然的。App 会明确告诉你是这种情况，而不是编一个厂商名出来。

App 会扫描我的局域网吗？

不会。识别路由器型号时，App 只向网关这一个地址发送一次未认证的 HTTP 请求， 读取响应头与页面标题。不尝试登录、不发送凭据、不扫描端口，单次最多 5 个请求、6 秒内结束。

数据会上传吗？

不会。App 不发起任何外部网络请求。历史记录只存在你的设备本地，锁屏后不可读， 随时可在「设置」页一键清空。

Whence

Lays open where the devices around you actually come from

FAQ

Why does a hardware app need location permission?

iOS requires it: an app must hold location authorization before it may read the name and BSSID of the connected Wi-Fi network. This is a platform rule, not a choice this app made. Whence never obtains your coordinates, never stores them, never uploads them. See the privacy policy.

Why can't it read battery health?

iOS does not expose battery health, cycle count, or design capacity to third-party apps. This is not "not implemented yet" — it is not possible. Desktop tools can read it only over USB through an entirely different diagnostic channel that apps cannot reach.

The actual suppliers of the display and battery are likewise unreadable. The app's supply-chain section shows only the publicly reported range for that model, marked as inferred and visually de-emphasized. Any app claiming to detect this directly on an iPhone is not telling you the truth.

Why are the access point and gateway shown as different devices?

This usually isn't an error — it's useful information. It means you're on a mesh network, a controller-plus-thin-AP deployment, a wireless repeater, or a modem plus your own router. Expand the evidence chain to see every piece of reasoning.

Why is the manufacturer unknown?

If the BSSID is a locally administered address — common for guest networks, phone hotspots, and mesh nodes — it isn't in the IEEE registry at all, so a lookup cannot succeed. The app tells you that's what happened rather than inventing a manufacturer.

Does the app scan my local network?

No. To identify the router model it contacts only the gateway address, with a single unauthenticated HTTP request, reading response headers and the page title. It never logs in, never sends credentials, never scans ports. At most 5 requests, finished within 6 seconds.

Is any data uploaded?

No. The app makes no external network requests. History is stored only on your device, unreadable while locked, and can be cleared at any time from Settings.