Polyrhythm Metronome Privacy Policy

Effective date: 2026-11-10

This policy explains how Polyrhythm Metronome (the website at https://polyrhythm-metronome.pages.dev/ and the Android app com.vnppp.polyrhythmmetronome, together “the product”) handles your information. The product is published by FTOZON TOKYO K.K..

1. Information we collect

The product does not require an account, contains no analytics, advertising or third-party tracking code, and sets no cookies.

Content you enter or create is stored only on your device (browser local storage on the web, app-private storage on Android). The product does not send that content to us or to any third party.

Paid features

Pro on Android is bought through Google Play billing. Google processes the payment; we never receive your card details. After a purchase the app sends the purchase token, app package name and product ID to our verification service (running on Cloudflare), which checks the purchase with Google Play and returns a signed unlock credential. The service stores a hash of the purchase token and the purchase state to handle refunds and renewals; it does not store your name, email or payment details. For this reason the Android app requests the network permission, used only for this check. The website does not sell anything at this time.

2. Website hosting

The website is hosted on Cloudflare. As with any website, the hosting provider processes technical data such as IP address and browser type to deliver and protect the service, under the Cloudflare Privacy Policy. We do not use this data to identify you.

3. Deleting your data

Web: clear this site's data in your browser. Android: clear the app's storage in system settings or uninstall the app.

4. Children

The product is not directed to children under 13, and we do not knowingly collect children's personal information.

5. Changes

If this policy changes we will update this page and its effective date.

6. Contact

FTOZON TOKYO K.K.
Email: vnpppdev2022@gmail.com