Sound Lock Privacy Policy

Effective date: 2026-05-17
Last updated: 2026-05-17

English

Data we collect

None. Sound Lock does not collect, transmit, sell, or share any user data. The app has no analytics, no telemetry, no remote logging, no crash reporting, and no network requests of any kind, with the single exception of the App Store / StoreKit purchase flow handled entirely by Apple.

Data stored locally

The following information is stored exclusively on your Mac in standard macOS UserDefaults:

  • Audio device UIDs you have chosen to lock as preferred input / output / system output
  • Cached display names of audio devices you have seen, so that offline devices remain identifiable
  • The Pro entitlement flag (whether you have purchased Sound Lock Pro)

This data never leaves your device and is removed when you uninstall the app.

Microphone, camera, and screen

Sound Lock does not record audio, access the microphone, access the camera, or capture the screen. It only calls public macOS CoreAudio APIs to read the device list and change the system default device selection.

In-App Purchases

Purchases (Sound Lock Pro) are processed entirely by Apple’s StoreKit. The developer never receives your payment information. Apple’s standard privacy policy applies.

Third parties

Sound Lock contains no third-party SDKs, no advertising frameworks, no tracking libraries.

Contact

Questions about this policy: oldcai.com@gmail.com

简体中文

我们收集的数据

无。 Sound Lock 不收集、不传输、不出售、不分享任何用户数据。App 没有任何分析、遥测、远程日志、崩溃上报或网络请求 —— 唯一例外是由 Apple 完全处理的 App Store / StoreKit 购买流程。

本机存储的数据

以下信息仅保存在你的 Mac 本地标准 UserDefaults 中：

  • 你选择锁定为优先输入 / 输出 / 系统输出的音频设备 UID
  • 已识别音频设备的缓存显示名，便于离线设备仍可识别
  • Pro 解锁标志（你是否已购买 Sound Lock Pro）

这些数据永不离开你的设备，卸载 App 后自动清除。

麦克风、摄像头、屏幕

Sound Lock 不录音、不访问麦克风、不访问摄像头、不截屏。仅调用 macOS CoreAudio 公开 API 读取设备列表并切换系统默认设备选择。

内购

Pro 购买完全由 Apple StoreKit 处理，开发者永远不接触你的支付信息。适用 Apple 的标准隐私政策。

第三方

Sound Lock 不包含任何第三方 SDK、广告框架或追踪库。

联系

关于本政策的问题：oldcai.com@gmail.com

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