隐私政策
「听音练习」由 Zhao Yongbiao 开发。我们重视你的隐私：本 App 不收集、不存储、不分享任何个人数据。
麦克风
单音听辨需要使用麦克风，用来识别你用乐器奏出的音高。声音只在你的设备上实时分析，不会录音、不会保存，也不会上传到任何服务器。音程听辨与和弦听辨不使用麦克风。你可以随时在 iOS「设置 → 隐私与安全性 → 麦克风」中关闭权限。
练习记录
练习记录、统计和错题本保存在你的设备上；如果你登录了 iCloud，它们还会通过 Apple 的 iCloud（CloudKit）同步到你自己的 iCloud 私有数据库，以便在你的其他设备上使用。开发者无法访问这些数据。你可以在 App 的「设置 → 数据」中清空练习记录和错题本，也可以在 iOS 的 iCloud 设置中管理这些数据。
购买
「高级版」通过 Apple 的 App 内购买完成，付款由 Apple 处理。我们不会收到你的付款信息或 Apple ID 信息。
不做的事情
- 没有账号注册与登录
- 没有广告，没有第三方统计或分析工具
- 不追踪你在其他 App 或网站中的活动
儿童
本 App 不收集任何人的个人数据，包括儿童。
政策变更
如果本政策有变化，我们会更新本页面并修改上方的生效日期。
联系我们
对隐私有任何疑问，请发邮件至：eartraining.app@outlook.com
Privacy Policy
Play by Ear is developed by Zhao Yongbiao. The app does not collect, store or share any personal data.
Microphone
Single Note practice uses the microphone to detect the pitch you play on your instrument. Audio is analyzed on your device in real time and is never recorded, stored or uploaded. Interval and Chord training do not use the microphone. You can turn off microphone access at any time in iOS Settings → Privacy & Security → Microphone.
Practice data
Your practice history, statistics and missed notes are stored on your device. If you are signed in to iCloud, they also sync through Apple's iCloud (CloudKit) to your own private iCloud database so you can use them on your other devices. The developer has no access to this data. You can clear it in the app under Settings → Data, or manage it in your iCloud settings.
Purchases
"Pro" is an in-app purchase processed by Apple. We never receive your payment details or Apple Account information.
What we don't do
- No account sign-up or sign-in
- No ads, and no third-party analytics
- No tracking across other apps or websites
Children
The app collects no personal data from anyone, including children.
Changes
If this policy changes, we will update this page and the effective date above.
Contact
Questions about privacy? Email eartraining.app@outlook.com