# Trombonophone — Your face is the instrument

> Your face is the instrument (iPhone/iPad app by Edmund Trujillo.)

- Source: https://appshunter.io/ios/app/trombonophone/id6817391838 (this page in markdown: same URL + `.md`)
- Developer: [Edmund Trujillo](https://appshunter.io/developer/1862926811)
- Category: Education, Music
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 15.5 · 72 MB
- Languages: American English
- Released: 2026-10-30
- Data updated: 2026-11-06

## What is Trombonophone?

Trombonophone turns your phone into the slide of a trombone.

Hold it in front of you with the screen facing you. Push it away and the pitch drops. Pull it back and the pitch rises, just like a slide. Open your mouth and it plays. Close it and it stops.

The front camera measures how far the phone is from your face, and that distance becomes the slide. There is nothing to blow into and nothing to plug in.

• The slide: all seven positions, from 1st, close to your face, to 7th, at arm's length.
• Your mouth: open it to play, close it to stop. Or hold the pad on the screen instead.
• Seven partials, Bb2 up to Bb4, chosen with your thumb.
• A buzzy brass tone, rich in harmonics.
• The name of every note you play.
• A three-step guide that fits the slide to your arm the first time you open the app.

THE FULL INSTRUMENT
One purchase, once, adds the rest:
• Wah: brass that speaks. Your mouth works like a plunger mute, so mouthing "wah" says it. Slide out a position on each one and you have the sad trombone.
• Pure: a single sine wave, for hearing the pitch and nothing else. The low notes are best on headphones.
• Lips: let your mouth choose the partial, the way a brass player's lips do. A small opening for the high notes, a wide one for the low. No hands.
• Assist and Snap: help with intonation. Assist draws you gently toward each position. Snap lands on it exactly.
• The staff: every note written on a bass staff as you play it, ledger lines and all, with how many cents sharp or flat you are.
• Solfège: note names as Do, Re, Mi in place of C, D, E. The app picks the one used where you live, and you can change it at any time.

GOOD TO KNOW
• Face tracking runs on your device.
• No account, no ads, no subscription.
• The range is E2 to Bb4, two and a half octaves.
• For iPhone and iPad, held upright.
• Works best in good light, with your face in view of the front camera.

Trombonophone is an instrument of its own, not a recording of one. The sound is made in the app as you play.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Trombonophone | $1.99 | one-time |


## Is Trombonophone safe?

Not enough ratings yet to assess Trombonophone.

## Is Trombonophone legit?

Trombonophone appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Trombonophone is 65 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 1 release)

### 1.1 — 2026-10-30

No release notes.

## More apps by Edmund Trujillo

- [Trumpet Trainer](https://appshunter.io/ios/app/trumpet-trainer/id6785914116)
- [French Horn Trainer](https://appshunter.io/ios/app/french-horn-trainer/id6788198550)
- [Trombone Trainer](https://appshunter.io/ios/app/trombone-trainer/id6788198664)
- [Intonation Training](https://appshunter.io/ios/app/intonation-training/id6792377954)
- [Baritone & Euphonium Trainer](https://appshunter.io/ios/app/baritone-and-euphonium-trainer/id6795552416)
- [Pure Bible Search](https://appshunter.io/ios/app/pure-bible-search/id6806401363)

All apps by Edmund Trujillo: https://appshunter.io/developer/1862926811

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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 2026-11-06.*