# SUS4 Pitch Pipe — A pitch when you need one.

> A pitch when you need one. (iPhone/iPad app by Paul Smith.)

- Source: https://appshunter.io/ios/app/sus4-pitch-pipe/id6777229584 (this page in markdown: same URL + `.md`)
- Developer: [Paul Smith](https://appshunter.io/developer/319584506)
- Category: Music, Education
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 16.0 · 20 MB
- Languages: English
- Released: 2026-06-17
- Data updated: 2026-07-09
- User reviews in markdown: https://appshunter.io/ios/app/sus4-pitch-pipe/id6777229584/reviews.md

## What is SUS4 Pitch Pipe?

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.

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| SUS4 Pitch Pipe Pro Monthly | $0.99 | per month |



## Version history (last 2 releases)

### 1.1.0 — 2026-07-02

Every advertised feature is now fully functional, Pro genuinely unlocks real features, and the new SUS4 All-Access pass unlocks all 24 SUS4 apps with a 7-day free trial. Faster and clearer throughout.

### 1.0 — 2026-06-18

No release notes.

## More apps by Paul Smith

- [iScrobble Pick And Mix](https://appshunter.io/ios/app/iscrobble-pick-and-mix/id319584503)
- [iSwipeMusic](https://appshunter.io/ios/app/iswipemusic/id334689181)
- [iShuffleAlbums](https://appshunter.io/ios/app/ishufflealbums/id335009718)
- [iBreathalyzer](https://appshunter.io/ios/app/ibreathalyzer/id369686249)
- [SUS4 Chord ID](https://appshunter.io/ios/app/sus4-chord-id/id6777229621)

All apps by Paul Smith: https://appshunter.io/developer/319584506

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-09.*