Privacy

Nitpitch does not collect, store, or transmit any personal data. Nothing ever reaches the developer or any third party. If you enable iCloud sync — an opt-in switch, off by default — your instrument setups travel between your own devices through your Apple iCloud account, and that is the only thing that ever leaves the device.

Last updated: 16 August 2026.

What the app does with the microphone

Nitpitch needs microphone access for the only reason a tuner could: to hear the note you are playing and show you how far off it is.

Audio is analyzed as it arrives, in memory, on your device, and then discarded. At any instant the app holds at most a fraction of a second of sound — a small fixed buffer that is continuously overwritten by whatever comes next.

Specifically, the app does not:

• record audio, or write any sound to a file;
• keep a history of what you played, or of any reading;
• transmit audio, or anything derived from it, anywhere.

Nothing you play is ever saved or sent. There is no point at which a recording exists.

What is stored on your device

Your setup, kept so the app opens the way you left it: the instruments you own (their names, tunings, reference pitches and locks), your saved presets, your favorites and pins, and display preferences such as the note-naming convention.

These live in the app’s own preferences on your device. They are not transmitted anywhere — unless you enable iCloud sync, below — and they are removed when you delete the app.

iCloud sync — opt-in, and what it moves

A switch in Settings (off by default, and off until you touch it) syncs your instruments, presets and favorites between your own devices signed in to the same iCloud account.

• What moves: the setup data listed above — instrument names, tunings, reference pitches, presets, favorites and pins.
• What never moves: audio, or anything derived from it. The microphone path is untouched by sync.
• Where it goes: Apple’s iCloud Key-Value Storage, inside your own iCloud account — the same place your other apps’ settings sync. It is not a server of ours; we have none, and no ability to read what syncs.
• Turning it off stops all syncing from that device. Data already synced remains in your iCloud account and on your other devices until changed or deleted there.

While the switch is off, the app behaves exactly as it always has: nothing leaves the device.

Network access

The app itself makes no network connections of any kind. Even with iCloud sync enabled, the app writes to a local store and the operating system’s own iCloud daemon does the moving — outside the app, under Apple’s iCloud terms.

On macOS this is enforced rather than merely promised: Nitpitch runs in the App Sandbox without the network entitlement, so the operating system itself will not permit it to open a connection. The capabilities it requests are audio input and iCloud Key-Value Storage.

On iOS the app requests the iCloud Key-Value Storage entitlement and the microphone permission you are asked for directly — nothing else.

No tracking, no accounts, no third parties

• No analytics, telemetry, crash reporting, or usage measurement.
• No advertising, and no advertising identifiers.
• No accounts, and no sign-in. iCloud sync uses the account your device is already signed in to; the app never sees its credentials, and works fully without one.
• No third-party code. Nitpitch is built entirely on frameworks that ship with the operating system (AVFoundation, Accelerate, SwiftUI). There is no SDK from any other company in the app, so there is no one else to receive data even in principle.

Children

The app collects no data from anyone, of any age.

Your rights

Because no data ever reaches the developer, there is nothing to request access to, correct, export, or delete from anyone but your own devices. Removing the app removes everything it stored locally. If you used iCloud sync, the synced copy lives in your own iCloud account: turn the switch off before removing the app, or manage the data from another synced device.

Verifying any of this

Nitpitch is open source under the MIT license. Every claim on this page can be checked in the code at https://github.com/vlumi/nitpitch — the entitlements files show exactly which capabilities the app requests, and the audio path in AudioInput.swift shows the buffer being overwritten rather than retained.

Changes

If this policy ever changes, the revision will be published in this file, with its history visible in the repository. Any change that affected what the app does with your data would ship alongside the app version that made it.

Contact

Questions about privacy in Nitpitch: ville@misaki.fi, or open an issue at https://github.com/vlumi/nitpitch/issues.