Privacy Policy

Last updated: 21 August 2026

The short version: Voces does not collect anything about you. It has no account system and no analytics. Your singing, your scores and your practice history never leave the device. The one exception is buying something, which is described under Purchases.

The rest of this page explains that claim precisely enough to be checked.

Your microphone

Sung exercises need the microphone. The audio is analysed for pitch as it arrives, in memory, on your device, and is discarded immediately. Voces does not record audio to a file, does not keep a buffer of your singing after an attempt is scored, and never transmits audio anywhere.

What survives an attempt is a score and a sequence of detected note numbers — no audio. That, too, stays on the device.

You can revoke microphone access at any time in Settings → Privacy & Security → Microphone. Exercises that do not involve singing keep working without it.

If you use a MIDI instrument instead of singing, the microphone is never opened at all and the app does not ask for access to it. Connected MIDI devices are read for note and velocity data only; nothing about them is stored or transmitted.

What is stored, and where

Voces keeps your practice history on the device so it can show progress and adjust difficulty: which pieces you attempted, per-voice scores, streaks, and your settings. This lives in the app's own storage, is not readable by other apps, and is removed completely when you delete Voces. If you have iCloud device backup enabled, it may be included in your own encrypted backup — that is Apple's mechanism, not ours, and we cannot read it.

What we do not do

• No user accounts, sign-ups, email addresses or passwords.
• No analytics or telemetry SDKs.
• No advertising, no ad identifiers, no App Tracking Transparency prompt — because there is nothing to track.
• No third-party trackers, no social login, no crash-reporting service. The only third-party code that reaches a network is RevenueCat, and only to answer whether you have paid — see Purchases.
• No sale or sharing of personal information. We hold none.

Apart from buying and restoring a purchase, the app functions fully in airplane mode. That is the simplest way to verify all of the above for yourself.

Purchases

If you buy a subscription or the lifetime unlock, the payment itself is handled entirely by Apple through the App Store. Apple does not give us your name, email or payment details, and we never see your payment information. Apple's handling of that transaction is governed by Apple's Privacy Policy.

To know whether you are entitled to premium content, the app uses RevenueCat, a subscription service that acts as a processor on our behalf. It receives the App Store transaction for your purchase, together with an anonymous identifier it generates for the installation and the technical details any network request carries, such as your device model, operating system version and IP address. We do not give it an account, an email address or any name, because the app has none to give: it never asks you to register and never sets an identifier of its own.

Checking your entitlement is the only occasion on which the app contacts a network. Everything else — the corpus, the scoring, the pitch detection and your progress — works with the network switched off.

Children

Voces is suitable for any age and collects no personal information from anyone, children included. It contains no advertising, no user-generated content and no way to communicate with other people.

Your rights

Under the GDPR, the UK GDPR, the CCPA and comparable laws you have rights to access, correct, export and erase personal data held about you. We hold no personal data about you, so there is nothing for us to produce or delete. Everything the app knows is on your device, under your control, and deleting the app erases it.

If you would like this confirmed in writing for your own records, write to [email protected] and we will confirm it.

This website

hearvoices.app is a static site. It sets no cookies, embeds no third-party scripts, fonts or analytics, and the ear test on the front page runs entirely in your browser — it uses no microphone and sends nothing anywhere. Our hosting provider keeps standard server logs (IP address, timestamp, requested page) for security and troubleshooting, as every web host does.

Changes

If this policy changes in a way that affects what is collected, the change will be described here with a new date, and — if it is material — announced in the app before it takes effect.

Contact

[email protected]
Data controller: Alexey Ovod, Stockholm, Sweden.