适用范围
本政策仅适用于指板博士（FretMaster）iOS App。使用本 App 不需要账号。
我们处理的数据
训练配置、进度和统计保存在设备本地。我们不要求你提供姓名、邮箱或账号资料。
数据用途
这些数据只用于恢复训练、展示进度和统计，帮助你持续学习指板。
网络与权限
指板博士不请求麦克风或语音识别权限。核心训练不依赖上传录音或网络账号。
数据共享
我们不出售个人数据，也不会为广告或营销目的共享你的训练数据。
儿童隐私
本 App 并非专为儿童设计，且不会有意收集儿童个人信息。
政策更新与联系
若本政策有重要变化，会在此页面更新日期。如有问题，请联系 31873601@qq.com。
Scope
This policy applies only to the FretMaster iOS app. The app does not require an account.
Data we handle
Training configuration, progress, and statistics are stored locally on your device. We do not ask for your name, email address, or account details.
How data is used
This data is used only to restore training, show progress and statistics, and help you keep learning the fretboard.
Network and permissions
FretMaster does not request microphone or speech-recognition permission. Core training does not depend on uploaded recordings or a network account.
Data sharing
We do not sell personal data or share your training data for advertising or marketing.
Children's privacy
The app is not directed specifically to children and does not knowingly collect children's personal information.
Updates and contact
If this policy changes materially, we will update its date here. Questions: 31873601@qq.com.