Lull

Privacy Policy

Last updated: 2026-05-24

隐私政策

最后更新:2026-05-24

No accounts
No analytics
No tracking
Offline-first

Short version

Lull does not collect any data. The entire app runs locally on your iPhone or iPad. There are no accounts, no sign-in, no analytics, no advertising identifiers, no trackers, and no server calls during normal use.

简短版本

Lull 不收集任何数据。整个应用完全在你的 iPhone 或 iPad 本地运行。 不设账号、不需要登录、没有分析统计、没有广告标识符、没有任何追踪器, 正常使用过程中也不会向服务器发起任何请求。

What stays on your device

  • The set of bundled ambient and ASMR sound files (shipped inside the app, never downloaded after install)
  • Your saved mixes — sound selection, per-stem volume, optional name and cover photo
  • UI preferences (current language, last-used mix, master volume default)
  • The Pro purchase status, written to standard UserDefaults

All of the above lives only in this app's sandboxed container on your device. None of it leaves your iPhone or iPad.

留在你设备上的内容

  • 应用内置的环境声与 ASMR 音频文件(安装时即随应用一起内置,不会再额外下载)
  • 你保存的混音 —— 包括所选声音、每个声音的音量、可选的名称与封面照片
  • 界面偏好(当前语言、上次使用的混音、默认主音量)
  • Pro 购买状态,写入标准的 UserDefaults

以上数据全部仅保存在本应用在你设备上的沙盒容器内,不会离开你的 iPhone 或 iPad。

What we do not collect

  • No personal identifiers, no email, no phone number, no name
  • No usage analytics, crash analytics, or telemetry of any kind
  • No advertising identifiers, no device fingerprinting, no third-party SDKs that collect data
  • No location, contacts, photos beyond a single photo you may optionally pick for a mix cover
  • No audio recording — Lull plays bundled audio only and never accesses the microphone

我们不收集的内容

  • 不收集任何个人身份信息、邮箱、电话或姓名
  • 不收集任何使用分析、崩溃分析或遥测数据
  • 不使用广告标识符、不做设备指纹、不接入任何会收集数据的第三方 SDK
  • 不读取位置、通讯录;除非你主动选择一张照片作为混音封面,否则不访问相册
  • 不录音 —— Lull 只播放内置音频,从不访问麦克风

In-app purchase

Lull offers a single one-time non-consumable in-app purchase (Lull Pro · Lifetime) that unlocks all scenes, the full sound library, custom mix creation, custom covers, and the sleep timer. Apple processes the purchase through StoreKit; the receipt and entitlement are handled entirely by Apple and the operating system. We do not see or store any payment details.

应用内购买

Lull 提供一项一次性非消耗型应用内购买(Lull Pro · 终身), 解锁所有场景、完整声音库、自定义混音、自定义封面和睡眠定时器。 购买流程由 Apple 通过 StoreKit 完成,凭证与权益由 Apple 与操作系统处理。 我们不接触也不保存任何支付信息。

System integrations

  • Photo picker: If you choose a cover image for a saved mix, iOS shows the system photo picker. Only the single photo you pick is read; the rest of your photo library is never accessed.
  • Now Playing & lock screen: Lull publishes the active mix's name and a generated artwork tile to the iOS Now Playing system so playback can be controlled from the lock screen and Control Center. This stays inside your device.
  • Audio session: Standard iOS background audio, used only for playing the bundled sounds.

系统集成

  • 照片选择器: 如果你为保存的混音选择封面,iOS 会调起系统照片选择器。只会读取你挑选的那张照片,其余照片库内容从不访问。
  • 正在播放 & 锁屏: Lull 把当前混音的名称与生成的封面图发送到 iOS「正在播放」系统,以便从锁屏和控制中心控制播放。这些信息保留在你的设备上。
  • 音频会话: 标准的 iOS 后台音频,仅用于播放内置声音。

Children

Lull is rated 4+ and contains no objectionable content. The app does not collect any personal information from anyone, including children. It is not directed to children under 13 in particular, but is safe for them to use.

儿童

Lull 评级为 4+,不包含任何不当内容。本应用不会从任何人(包括儿童)那里收集个人信息。 它并非专门面向 13 岁以下儿童设计,但对他们使用是安全的。

Changes

If this policy ever changes, the updated version will be posted at the same URL with a new "Last updated" date above.

Contact

For privacy questions, email fdubingo@icloud.com.

变更

如本政策有更新,新版本会发布在同一网址,顶部「最后更新」日期会随之更新。

联系

如有隐私相关问题,请发送邮件至 fdubingo@icloud.com。