# SUS4 Pitch Pipe: Tuning Drone — Concert pitch for brass & sax

> Concert pitch for brass & sax (iPhone/iPad app by ThePaulSmith.)

- Source: https://appshunter.io/ios/app/sus4-pitch-pipe-tuning-drone/id6777229584 (this page in markdown: same URL + `.md`)
- Developer: [ThePaulSmith](https://appshunter.io/developer/319584506)
- Category: Music, Education
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 16.0 · 32 MB
- Languages: European Portuguese, German (Germany), Bangla, Kannada, Catalan, Czech, Chinese (Simplified, China), Chinese (Traditional, Taiwan), Korean, Croatian and 34 more
- Released: 2026-06-17
- Data updated: 2026-11-15

## What is SUS4 Pitch Pipe?

The band is about to tune and there is no piano in the room, or no tuner that everybody can hear. Tap the note here and it holds until you stop it.

Hold a steady concert pitch for tuning, long tones and intonation work.
Any note from C1 to B8, with A4 anywhere from 430 to 450 Hz, so the band tunes to one reference.
Fully on-device: no cloud, no account.

Tap a note and it keeps sounding until you tap it again. Tune to concert B flat or A before a rehearsal or a gig, play long tones against it and listen for the beats to slow down and stop, or hold the tonic under a scale and check each interval by ear.

It needs no microphone, so the tone stays clean in a loud band room, backstage or in a church.

• 12 notes per octave, octaves 1 to 8
• A4 reference from 430 to 450 Hz, for bands that tune to 442
• Notes sound at concert pitch, named with sharps: B flat is A#
• Works offline, with no mic permission

For trumpet, trombone, horn, tuba and sax players, brass bands, big bands and wind bands, and choirs that need a starting note.

Everyone gets two notes a day. Pro, or SUS4 All-Access across the whole range, removes the daily limit and adds Pitch Pipe+: an interval drone (the root with any interval up to an octave above it), chord drones (major, minor, sus2 and sus4) for a section tuning a chord, a glide between two notes and five tones from sine to plucked.

PART OF THE SUS4 RANGE
Pitch Pipe is one of more than 20 SUS4 apps for musicians from the same studio, covering tuning, timing, ear training, transcribing and writing. SUS4 All-Access unlocks all of them with one subscription.

WHAT IT COSTS
The app is free to download and use, with the limits and Pro extras described above. Pitch Pipe Pro and SUS4 All-Access are optional subscriptions. The plans on offer and their prices are shown in the app before you pay, and you can cancel at any time in your App Store settings.

Built by Paul at 4ChordsStudios, a working recording studio in the UK.

Who makes it: https://4chords.studio
Contact: hello@4chords.studio

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

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| SUS4 All-Access | $5.99 | per month |
| SUS4 All-Access Annual | $19.99 | per year |
| SUS4 All-Access Annual | $26.99 | per year |
| SUS4 All-Access Annual | $35.99 | per year |
| SUS4 All-Access Annual | $51.99 | per year |
| SUS4 All-Access | $4.39 | per month |
| SUS4 All-Access | $7.99 | per month |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| SUS4 Pitch Pipe Lifetime | $71.99 | one-time |
| SUS4 Pitch Pipe Lifetime | $54.99 | one-time |
| SUS4 Pitch Pipe Lifetime | $103.99 | one-time |


## Is SUS4 Pitch Pipe safe?

Not enough ratings yet to assess SUS4 Pitch Pipe.

## Is SUS4 Pitch Pipe legit?

SUS4 Pitch Pipe: Tuning Drone appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for SUS4 Pitch Pipe is 75 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 5 releases)

### 1.4.0 — 2026-11-14

Layouts now adapt to iPhone Duo and other foldable displays.

Bug fixes and performance improvements.

### 1.3.0 — 2026-10-30

Hold a drone while you practise, with an optional fifth or octave and a choice of sounds.

Match It plays a random note for you to find with your voice or instrument, with a live cents readout. Transposing instruments now read in their written key.

### 1.2.0 — 2026-10-12

SUS4 now speaks your language: the app is available in 50 languages.
Any lifetime purchase now unlocks every SUS4 app.
A clearer upgrade screen, plus fixes and polish throughout.

### 1.1.3 — 2026-09-27

Stability and performance improvements.

### 1.1.2 — 2026-09-12

Lifetime purchase option and reliability improvements.

## Apps similar to SUS4 Pitch Pipe

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Sigo Radio - Retro Stations](https://appshunter.io/ios/app/sigo-radio-retro-stations/id6791372208) | — | Free | Music |
| [PitchHold: Slow & Loop Music](https://appshunter.io/ios/app/pitchhold-slow-and-loop-music/id6810121461) | — | Free | Music |
| [Reverb Pedal: AUv3 plugin](https://appshunter.io/ios/app/reverb-pedal-auv3-plugin/id6760197727) | 5.0 (1) | $0.99 | Music |
| [Pitchline: Guitar & Bass Tuner](https://appshunter.io/ios/app/pitchline-guitar-and-bass-tuner/id6817300181) | — | Free | Music |
| [Pitch Pipe: Reference Tone](https://appshunter.io/ios/app/pitch-pipe-reference-tone/id6772272683) | — | Free | Music |
| [Tempo Loop: Video Slow Downer](https://appshunter.io/ios/app/tempo-loop-video-slow-downer/id6788396211) | 3.0 (1) | Free | Music |

## More apps by ThePaulSmith

- [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: Chord Finder](https://appshunter.io/ios/app/sus4-chord-id-chord-finder/id6777229621)

All apps by ThePaulSmith: https://appshunter.io/developer/319584506

## Related topics

[tenorshare 4ukey](https://appshunter.io/ios/topics/tenorshare-4ukey) · [pitch pipe by congregate](https://appshunter.io/ios/topics/pitch-pipe-by-congregate) · [the pitch pipe](https://appshunter.io/ios/topics/the-pitch-pipe) · [chorus note](https://appshunter.io/ios/topics/chorus-note) · [perfect pitch pipe](https://appshunter.io/ios/topics/perfect-pitch-pipe)

---

*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 2026-11-15.*