# STPZTUNE Chromatic Tuner — AUv3, strobe, Thai and custom

> AUv3, strobe, Thai and custom (iPhone/iPad app by Theeraphat Sritharathikhun.)

- Source: https://appshunter.io/ios/app/stpztune-chromatic-tuner/id6826903232 (this page in markdown: same URL + `.md`)
- Developer: [Theeraphat Sritharathikhun](https://appshunter.io/developer/6825594553)
- Category: Music, Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 17.0 · 4 MB
- Languages: American English, Thai
- Released: 2026-10-27
- Data updated: 2026-11-10

## What is STPZTUNE Chromatic Tuner?

A calm, clear tuner for every instrument: a big note name, a needle that glides instead of shaking, and a strobe when you want the last fraction of a cent.

TUNE ANYTHING
• Chromatic: play a note and see the nearest one, how many cents off, and which way to turn
• From a 5-string bass's low B (31 Hz) up to 4 kHz
• Steady tones within ±0.5 cent, bowed strings with vibrato within ±2 cent; the readout shows 0.1 cent
• Needle or strobe: the bands run left when low, right when high, and stand still in tune
• Hold keeps the steady part of a short note on screen, after the attack
• Stage mode: the note and the needle as big as the screen

THREE TUNING SYSTEMS
• Western: A4 from 415 to 466 Hz, with 440, 442 and 432 one tap away
• Thai: seven equal steps from the Fine Arts Department table, La = 417.2 Hz, names like "Sol 5" (or "ซอล 5" in Thai), and an option for textbooks that name the notes one step apart
• Custom: your band's own seven notes, made from a typed La, learned by playing them, or moved one by one in cents

MY INSTRUMENTS
• Save an instrument with its own notes: strings named your way, picked from the scale, typed in Hz or played in
• Auto finds the string you are playing; tap a string to lock it when you tune far, like Drop B
• Start from guitar, 4-string bass, ukulele, violin, saw duang or saw u
• Send an instrument as a file (AirDrop, Messages, Files): it opens with every value the same

AUv3 FOR YOUR MUSIC APPS
• Put STPZTUNE on a track in AUM, GarageBand, Loopy Pro, Logic Pro or Ableton Live (Mac): the sound passes through unchanged, with no latency
• Its settings and instrument are saved with your song
• A small plug-in window keeps the note and the needle readable

MADE TO BE LOOKED AT
English and Thai, Paper and Night looks.

Free. No ads, no account, no tracking, no internet: the sound is measured on your device and never recorded or sent.

## Is STPZTUNE Chromatic Tuner safe?

Not enough ratings yet to assess STPZTUNE Chromatic Tuner.

## Is STPZTUNE Chromatic Tuner legit?

STPZTUNE Chromatic Tuner has limited verification signals. The AppsHunter Legitimacy Score for STPZTUNE Chromatic Tuner is 58 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 3 releases)

### 1.1.1 — 2026-11-10

The App Store page is now in Japanese. Nothing changes in the app.

### 1.1.0 — 2026-11-07

• New Vocal page: sing and watch your voice as a line, with the note, the cents, and green when you are in tune (±25 cents, or ±10 for strict). Hold stops the line so you can drag back and look. Open it with Vocal on the tuner's bottom row.
• Needle and Strobe sit in a row of their own on the tuner.
• The tuner's buttons show each string's name with its note (String 6 : E2).
• Thai La now goes from 390 to 460 Hz, for every band's tuning.
• Plug in or pull out an audio interface while STPZTUNE is open, and it keeps listening.
• On the Mac, every input can be chosen, including the built-in microphone and keyboards with their own audio.
• iPhone SE: every button fits on the smaller screen.
• An About page with the other STPZ LAB apps.

### 1.0.0 — 2026-11-05

No release notes.

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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 2026-11-10.*