Privacy Policy

App: Sound & the Body — Interactive Frequency Atlas
Last updated: 2026

Summary: we have no server and we never see your data. The app has no accounts, no analytics, no advertising and no trackers. The atlas itself runs entirely on your device. The app makes two kinds of network request, both described below, and neither tells anyone what you look at or listen to.

Information we collect

We collect nothing ourselves. There is no login, no user profile and no server of ours. We never receive your name, contact details, or any record of how you use the atlas. The only information that leaves your device goes to Apple and to our purchase provider, for the purpose of processing and restoring a purchase — see "Network use" below.

Data stored on your device

The app saves, in local storage on your device: that you acknowledged the in-app disclaimer, the date your free trial began, whether you have unlocked the app, and your settings (such as the 2D/3D preference and volume). This stays on your device and is never transmitted to us. Deleting the app removes it.

Network use

All diagrams, 3D models and sounds are generated on your device with WebGL and the Web Audio API. Exploring the atlas needs no network connection, and nothing about what you view or play is transmitted anywhere.

The app makes network requests in exactly two situations:

Analytics & advertising

There is no advertising and no analytics or measurement tooling of any kind. The app includes one third-party SDK — RevenueCat — used solely to process and verify in-app purchases, as described above.

Children

The app is safe for general audiences. We collect no personal information from anyone, including children. The purchase data described above is handled by Apple and RevenueCat and is not used for advertising or profiling.

Health disclaimer

This app is for education and creative exploration only. It is not a medical device and does not diagnose, treat, cure, or prevent any condition, and is not a substitute for professional medical advice.

Changes

If this policy changes, the updated version will be posted here.

Contact

Questions about this policy: rcorn88@gmail.com