virtual-instruments-info

Privacy Policy — Golden Ear: Sound Explorer

Last updated: 2026-09-29

Golden Ear: Sound Explorer (“the app”) is developed by Chun-Yeol You (“we”, “us”). This policy explains what the app does and does not do with your information.

Summary

We do not collect, store, or transmit any personal data. The app has no account system, no analytics, no crash reporting, and no third-party advertising (the only promotion in the app is for the developer’s own desktop plugin and sample packs). Everything the app remembers stays on your device.

What the app stores, and where

The app keeps a small settings file in the app’s own private storage on your device (not accessible to other apps, not backed up to any server we control):

• Ear rating — a number that goes up or down based on how you answer the daily listening quiz and Skill Check exercises.
• Today’s challenge result — whether you’ve completed today’s quiz, your score, and a short auto-generated text summary you can copy and share yourself if you choose to.

None of this is linked to your name, email address, device identifier, or any other personal information, because the app never asks for any of those in the first place.

What the app does NOT do

• It does not require or create an account.
• It does not request microphone, camera, contacts, location, or storage permissions. (All sound is computed on-device from mathematical models — nothing is recorded, and no audio input is used.)
• It does not use analytics, crash-reporting, or advertising SDKs.
• It does not send any data to us or to any third party over the network.
• It does not use cookies or any similar tracking technology (the app has no web views).

Network access

The only network activity the app can trigger is opening your device’s web browser when you tap one of a small number of links inside the app: the “Use these sounds in your music” / “as sample files (SFZ/SF2)” buttons on the Home and Free Play screens (which take you to one of several Gumroad product pages, mirryouser.gumroad.com, depending on which instrument or pack the link is for), and the “Help” button (which opens our Android app guide, hosted at mirryou-maker.github.io). Those pages are operated by Gumroad or by GitHub Pages, not by us, and are subject to their own privacy policies once you leave the app. We do not receive any information about whether or when you tap any of these buttons.

Children’s privacy

The app does not knowingly collect any information from anyone, including children, because it does not collect information from anyone at all.

Changes to this policy

If this policy ever changes (for example, if a future version of the app adds a feature that does collect data), we will update this page and change the “Last updated” date above before that feature ships.

Contact

Questions about this policy: mirryou@gmail.com