Privacy policy
隐私政策
Ultra Block 是一款个人专注与设备使用管理工具。本政策说明 App 如何处理与你相关的信息。
我们不收集数据
Ultra Block 不要求注册账号，不包含广告或第三方分析 SDK，也不会把你的 App 使用情况、屏蔽范围、安全口令或其他个人数据发送给开发者或任何第三方。
设备本地处理
- 你通过 Apple Family Controls 选择的 App、类别和网站由系统以不透明令牌 表示，Ultra Block 仅在设备本地保存并用于执行你要求的屏蔽规则。
- 16 位安全口令的明文不会保存。App 只在系统钥匙串中保存随机盐值和用于验证 口令的密码学摘要。
- 朋友恢复功能只保存朋友的公钥。朋友的私钥不应进入本 App 或你的 iPhone。
Apple 屏幕使用时间权限
Ultra Block 请求 Apple 提供的个人 Family Controls 授权，以便你在自己的设备 上选择并屏蔽 App、类别和网站。你可以随时在系统设置中撤销授权。Ultra Block 不会将通过该能力获得的设备或使用信息用于广告、测量、出售或共享。
数据保留与删除
App 的设置保存在你的设备上。删除 App 会删除其本地容器；你也可以先在 App 内关闭屏蔽规则，并在系统设置中撤销屏幕使用时间授权。
儿童隐私
Ultra Block 的定位是个人生产力与个人设备使用管理，不面向儿童提供账号或 在线服务，也不会收集儿童个人信息。
政策更新
如果未来版本改变数据处理方式，本页面会在新版本发布前更新生效日期与说明。
联系我们
如有隐私问题，请通过 Ultra Block 支持页面 提交公开问题；请勿在问题中包含口令、私钥或其他敏感信息。
English
Privacy Policy
Ultra Block is a personal focus and device-usage management tool. This policy explains how the app handles information.
We do not collect data
Ultra Block requires no account, contains no ads or third-party analytics SDKs, and does not send your app usage, blocked selection, safety passcode, or other personal data to the developer or third parties.
On-device processing
- Apps, categories, and websites selected through Apple Family Controls are represented by opaque system tokens. Ultra Block stores them only on your device to apply the blocking rules you request.
- The 16-digit safety passcode is never stored in plaintext. Only a random salt and cryptographic verifier are stored in the system Keychain.
- Friend recovery stores only the friend’s public key. The private key should never be entered into the app or stored on your iPhone.
Apple Screen Time permission
Ultra Block requests Apple’s individual Family Controls authorization so you can select and shield apps, categories, and websites on your own device. You can revoke this permission in system settings. Device or usage information received through this capability is never used for advertising, measurement, sale, or sharing.
Retention and deletion
App settings remain on your device. Deleting the app removes its local container. You can also disable the blocking rule in the app and revoke Screen Time permission in system settings.
Children
Ultra Block is designed for personal productivity and individual device management. It does not provide online accounts or services to children and does not collect children’s personal information.
Changes
If a future version changes its data practices, this page will be updated with a new effective date before that version is released.
Contact
For privacy questions, open a public issue on the Ultra Block support page. Do not include passcodes, private keys, or other sensitive information.