# SUS4 Pitch Pipe

> A pitch when you need one.

Canonical page: [https://chrome-stats.com/d/id6777229584](https://chrome-stats.com/d/id6777229584)

## Overview

- **ID:** `id6777229584`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** ThePaulSmith
- **Category:** Music
- **Version:** 1.1.2
- **Last updated:** 2026-09-12
- **First published:** 2026-06-17
- **Size:** 20 MB
- **Data as of:** 2026-09-21
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/sus4-pitch-pipe/id6777229584)
- **Website:** [https://4chords.studio](https://4chords.studio/)
- **Privacy policy:** [https://4chords.studio/privacy](https://4chords.studio/privacy)

## Description

A clean chromatic reference tone, drone mode included. No account needed.

The right pitch, exactly when you need it.

Before a rehearsal, before a soundcheck, before the first note of a warmup — a reference tone grounds the room. SUS4 Pitch Pipe is a clean, chromatic pitch reference that covers every note, with a drone mode that holds a tone as long as you need it.

Singers use it for vocal warmups. A cappella groups use it before the downbeat. String quartets use it for the A before they check the tuning of everything else. It is a simple, reliable tool that never runs out of reeds.

• Full chromatic range — every note, every octave
• Drone mode for sustained reference tones during warmups
• Ideal for vocal warmups and a cappella groups
• Clean waveform with gentle attack — not harsh on the ear

No account. No mic access needed. Runs on-device, always.

Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Rankings

- #2,148,962 — Overall
- #80 — pitch

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Source: [Chrome-Stats](https://chrome-stats.com/d/id6777229584)