Overview
Violin Intonation is a practice app for violin learners. It helps you practice with pitch and intonation feedback.
Microphone Access
When you start tuning, intonation detection, or practice features, the app requests access to your microphone. Microphone audio is used on your device for pitch detection and intonation feedback. We do not record, upload, sell, or share your microphone audio.
Local Data Storage
Practice history, detected pitch and intonation results, learner progress, preferences, and manually entered content may be stored locally on your device. Violin Intonation does not require an account and does not upload this data to our servers.
Data We Do Not Collect
We do not collect, sell, or share your microphone audio, practice history, learner progress, pitch results, settings, or manually entered content.
Purchases
If you purchase Violin Intonation Pro, the transaction is processed by the platform where you make the purchase, such as the Apple App Store or Google Play. We do not receive or store your payment card information.
Diagnostics
If Apple, Google, or the device platform provides crash reports or diagnostics, they are handled through that platform's systems and used only to improve app stability and quality.
Security
Violin Intonation is designed to avoid sending your practice data and microphone audio to us. Data stored locally on your device is protected by your device and operating system security. Please use a device passcode, system updates, and trusted backups to protect your content.
Retention and Deletion
Your practice data remains on your device until you delete it in the app, clear app data, or uninstall the app. System backups, cloud backups, and device transfer features provided by Apple, Google, or your device manufacturer are controlled by your account and device settings.
Children and Guardians
Children may use Violin Intonation with consent and supervision from a parent or guardian. We do not knowingly collect personal information from children, and we do not receive microphone audio, practice history, or learner progress. If you believe a child has provided personal information to us, please contact us using the information below.
Changes
We may update this privacy policy from time to time. Updates will be posted on this page with a revised effective date.
Contact
If you have privacy questions, please email contact@wangyuehuishi.com.