Privacy Policy — Singkron

Effective date: July 8, 2026

Singkron is a vocal technique trainer. It listens to you sing via the microphone, tracks pitch in real time, and tells you which vocal technique (straight, vibrato, belt) you're producing, with gamified "hit the notes" levels and per-take scoring. This policy explains what happens with your data — short version: nothing leaves your phone.

What we collect

The app uses your device's microphone to detect pitch while you sing or play. Audio is processed live, on your device, to analyze pitch — it is not recorded or saved anywhere.

Where it goes

Nowhere. All audio processing happens on-device using Apple's built-in frameworks. Nothing is uploaded to a server, and we don't operate any server for this app.

Storage

We don't store or retain any audio or recordings.

Third parties

The app does not use any analytics, advertising, or crash-reporting SDKs. No data is shared with third parties. If you install this app via TestFlight, Apple's TestFlight service may collect its own crash and usage data under Apple's privacy policy — that's Apple's data collection, not ours.

Children

This app is not directed at children under 13 and does not knowingly collect data from them.

Contact

Questions about this policy: