Privacy Policy

Effective September 27, 2026

This policy applies specifically to the Pocket Music Room iPhone app (随身琴房), provided by HydraBird. It supersedes the general HydraBird policy for this app.

No developer data collection

The app has no account system, ads, tracking, analytics SDK, or developer-operated server. We do not collect or receive your microphone audio, pitch readings, identifiers, or app usage from the app.

Microphone

Microphone access is optional and used only when you enable pitch listening. Audio is analyzed in real time on your iPhone to display pitch. Audio is not recorded to a file or uploaded. The short pitch history is held in memory for the display. Listening stops when you leave the pitch panel or the app enters the background. You can revoke microphone permission in iOS Settings.

Local settings

The app stores preferences such as tempo, meter, piano range, reference pitch and panel selection on your device. It also stores a local tip coin count and transaction identifiers to prevent counting a purchase twice. We do not receive these local records. Deleting the app removes its local data; device backups are controlled by your Apple settings.

Optional tips

Tips are processed by Apple through In-App Purchase. The app receives Apple's verified transaction information locally to acknowledge a tip. We do not receive your payment card details. Apple's processing and App Store reporting are governed by Apple's privacy policy. No tip is needed to use any musical feature.

Support and this website

If you email us, we receive the email address and information you choose to provide and use them to respond. This support website does not embed analytics or advertising scripts; its hosting provider may process standard request information such as IP address to serve and secure the site. That is separate from the app's on-device processing.

Children and changes

The app does not knowingly collect personal data from children or adults. If this policy changes, the updated policy and effective date will appear here.

Contact

For privacy questions or requests concerning support correspondence, email hydrabird@corelli.cloud.

隐私政策

生效日期：2026 年 9 月 27 日

本政策专门适用于 HydraBird 提供的“随身琴房”（Pocket Music Room）iPhone 应用。对于本应用，以本政策而非 HydraBird 通用隐私政策为准。

开发者不收集应用数据

本应用没有账号、广告、跟踪、统计 SDK 或开发者运营的服务器。我们不从应用收集或接收你的麦克风音频、音高读数、设备标识或使用行为。

麦克风

麦克风权限是可选的，仅在你开启音高聆听时使用。声音实时在 iPhone 上分析，用于显示音高，不会录制成文件，也不会上传。用于显示的短时音高轨迹只保存在内存中。离开音高面板或应用进入后台时停止聆听。你可以随时在 iOS 设置中关闭麦克风权限。

本地设置

速度、拍号、琴键音区、参考音高、所在面板等偏好保存在设备本地。应用还保存本地打赏硬币数和交易标识，避免同一笔购买重复计数。开发者不会收到这些本地记录。删除应用会移除本地数据；设备备份由你的 Apple 设置控制。

自愿打赏

打赏由苹果应用内购买处理。应用在本地接收苹果验证过的交易信息，用于确认打赏。我们不会收到银行卡信息。苹果的支付处理和商店报告遵循苹果隐私政策。不打赏也可以使用全部音乐功能。

客服与本网站

如果你发送邮件，我们会收到你主动提供的邮箱地址及内容，仅用于处理咨询。本支持网站不嵌入统计或广告脚本；网站托管服务可能为提供与保护网站而处理 IP 地址等标准请求信息，这与应用内的本地处理不同。

儿童与政策更新

本应用不会主动收集儿童或成人的个人数据。如果政策更新，会在此页面公布新版和生效日期。

联系我们

隐私问题或与客服邮件相关的数据请求，请联系 hydrabird@corelli.cloud。