Privacy Policy for Volume Control Full Range Key

Last updated: September 28, 2026

Volume Control Full Range Key ("the Key App") is a small companion app by an independent developer (Rotem Zussman, "the developer"). Its only purpose is to act as the paid unlock described in Section 5 of the Terms of Use for the Granular Volume app ("Volume Control: Quiet Dial" on Google Play), on the device where both are installed, and to show that status.

The short version

The Key App collects no data at all. It requests no permissions, has no internet access (it does not request the INTERNET permission), contains no analytics, no advertising, and no tracking of any kind, and stores nothing. The Key App itself sends nothing anywhere, because it gathers nothing in the first place. Android itself, not the Key App, can send crash and freeze reports to Google if you have chosen in your device settings to share usage and diagnostics data; the Key App takes no part in collecting or sending them.

What the Key App does

The Key App displays a status screen: whether the main app is installed on this device. That check uses Android's standard package manager and happens entirely on your device. Separately, the main app checks, also locally through Android's package manager, whether the Key App is installed and was signed by the developer; that is how the unlock works. No server, network request, or account is involved in any of this.

Your purchase

Until September 28, 2026 the Key App was sold on Google Play like any other paid app. It is no longer offered to new buyers. The payment is collected and processed entirely by Google under Google's own privacy policy (policies.google.com/privacy) and payments terms. The developer never receives, sees, or stores your payment details. To restore the purchase on a new device, install the Key App again from Google Play with the same Google account. For refunds, use Google Play's standard refund process or contact the developer at the email below.

When you buy the Key App, Google Play gives the developer a record of the order so that the sale, its taxes and any refund can be handled: an order number, the date, the item, the price and tax, and your country. Where the developer rather than Google is the seller of record, Google also includes your state or region and postal code, which it uses to calculate tax. The record does not include your name, your email address or any payment details. The developer uses it only to account for the sale and to handle refunds, and keeps it for as long as tax and accounting rules require.

When you write to the developer

If you email the developer, your email address and whatever you choose to write are kept in the developer's Gmail account (a Google service, which may store it outside your country) in order to answer you and to keep a record of support and refund requests. They are not used for anything else. They are kept for up to three years so that a later question about the same purchase can be answered, and are deleted earlier on request, unless they are needed for a legal claim. The same retention applies under the Granular Volume privacy policy, so one mailbox is governed by one rule.

Why the developer may hold this at all

Where the GDPR or a similar law applies to you, the two records described above are held on these grounds. The order record is kept because the law requires a seller to account for a sale, its taxes and any refund, which is a legal obligation rather than a choice. An email you send is kept in order to answer you, which is the developer's legitimate interest in replying to the person who wrote, and, where your message concerns a purchase, in order to perform the contract you entered into. Nothing here is used for advertising, profiling or any automated decision, and none of it is sold or shared with anyone.

Your rights

Apart from any email you send and the purchase record described above, the developer holds no personal data about you. To ask about them under the GDPR, the CCPA or similar laws, write to the address below. For the rest of the data connected to the Google Play purchase itself, those rights are exercised against Google, which holds that data, through Google's own account tools.

You also have the right to lodge a complaint with your local supervisory authority, and you may do so without contacting the developer first. In Israel that authority is the Privacy Protection Authority; in the European Union and the United Kingdom it is the data protection authority of the country you live in.

Children's privacy

The Key App collects no data from anyone, including children, and contains no ads. Purchases on Google Play are subject to Google Play's own family and purchase-approval controls, and parents or guardians are responsible for supervising purchases made from accounts or devices a child can access.

Related documents

The Granular Volume app's own privacy policy and the Terms of Use that govern both apps are published at rzuss.github.io/granular-volume-privacy.

Governing law

This policy is governed by the laws of the State of Israel, subject to the jurisdiction of the competent courts of Israel, including, for a consumer in Israel, any court that has jurisdiction where the consumer lives. You keep the protection of the mandatory consumer-protection law of the country where you live, including any right it gives you to bring a claim there. A claim that relates specifically to Google's own handling of a purchase is governed by Google's own terms.

Changes

If this policy changes, the updated version will be posted at this same address with a revised "Last updated" date.

Contact

rotemzus@gmail.com

The person responsible for this policy, and the data controller where that term applies to you, is:

Rotem Zussman
36 Karl Netter Street
Rishon LeZion
Israel

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