OCTAVE

Privacy Policy

OCTAVE iPhone app · Effective 23 October 2026

In short

OCTAVE does not collect your data and sends nothing to the developer or any third party. Your settings and practice history stay on your iPhone. The app makes no network connections and has no account, analytics, ads or third-party code.

Microphone

TUNE, HOLD, RANGE, SCOPE and TAP clapping use the microphone. Sound is analysed in real time on your iPhone and discarded immediately; it is never recorded or sent anywhere. You can turn microphone access off at any time in iPhone Settings › OCTAVE; tools that don't need it keep working.

What stays on your device

Your settings (for example reference A4, meter, sounds) and practice records (for example your range and HOLD scores) are stored only on this iPhone. Deleting the app deletes them.

This website

octave.yingzhenwang.com uses Vercel Web Analytics to count anonymous page views. It uses no cookies and does not identify you. The app itself does not contact this site unless you open a link from it.

Children

OCTAVE is suitable for all ages because it collects no data.

Changes and contact

If this policy changes, this page and the effective date above will be updated. Questions: medal_carpals4t@icloud.com.