# UniTuner Pro - Chromatic Tuner — Advanced Precision Tuner

> Advanced chromatic tuner with precise cent readout, tone generator, and extensive tuning options. (iPhone/iPad app by Klaus Fecker.)

- Source: https://appshunter.io/ios/app/unituner-pro-chromatic-tuner/id6741528331 (this page in markdown: same URL + `.md`)
- Developer: [Klaus Fecker](https://appshunter.io/developer/1455227164)
- Category: Music, Productivity
- Price: $7.99
- Rating: 5.00/5 from 1 App Store ratings · 5 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.6 · 3 MB
- Languages: Russian, Hindi, Vietnamese, American English, Greek, Indonesian, European Spanish, Italian, Korean, German (Germany) and 6 more
- Released: 2025-03-13
- Data updated: 2026-08-24
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/unituner-pro-chromatic-tuner/id6741528331/reviews.md

## What is UniTuner Pro?

Features:

- Customizable User Interface:
Pick your favorite readout method in landscape or portrait mode.

- App supports dark and light mode.

- Recognized note shown in classical notation

- Accurate Cent Readout with Direct Feedback:
No more guessing! Get precise 1/10th cent accuracy from bass to the highest note.

- Tone Generator:
Tune your drums or instrument by ear using the tone generator, which includes Sine-Wave, Triangle, and Square-Wave options.

- Timeline:
Visualize the pitch in cents of the detected note.

- Audio Visualization (Spectrogram):
View your instrument's harmonic spectrum for better understanding the overtones.

Intonation Diagram (Tuning Map):
Display of the note with all overtones! This unique feature visualizes a note’s pitch over time—from the initial attack to the final decay. Perfect for instruments with short sustain, such as percussion instruments.

- Customizable Concert Pitch:
Set your concert pitch from 220 Hz to 880 Hz.

- Over 200 Tunings for String Instruments, including:
Ahenk, Armonico, Arpeggione, Bağlama / Saz - long neck, Baglamas, Bajo Quinto, Bajo Sexto, Balalaika, Bandurria - Spanish, Banjo, Banjo - Bass, Banjo - Cello, Banjo - Contrabass, Banjo - Tenor, Banjolete, Bass (Doublebass), Bouzouki (trichordo), Bouzouki (tetrachordo), Cello, Cuban Laúd, Dotara, Dulcimer - 3 course, Dulcimer - 4 course, Fiddle, Gekkin, Guitalete, Guitar, Guitar - 12-String, Guitar - Baritone, Guitarrón, Halszither, Hurdy Gurdy, Irish Bouzouki, Jarana Huasteca, Kamancheh, Kithara Sarda, Kora, Koto, Laúd - Spanish, Laúd - Cuban, Laúd - Philippine, Mandobass - 4 String, Mandobass - 8 String, Mandocello, Mandola, Mandolin, Nevoud, Oud, Pedal Steel Guitar, Pipa, Portuguese Guitar, Qinqin, Requinto, Russian Guitar, Setar, Ukulele, Ukulele - Baritone, Ukulele - Bass, Ukulele - Soprano, Vihuela, Viol (Baritone, Bass, Contrabass, Soprano, Tenor, Treble), Viola, Violin, Violin - Tenor, Xiaoruan, Yueqin, Zheng

- You can also create and store your own custom tunings and instruments.

- "Perfect 5th" tuning for: Violin, Viola, Cello, Double bass.

- Transpose:
The output can be shifted by a specified number of semitones

- Note names: 
English, German, Japanese, Korean, Chinese, Russian, Greek, Bengali, Hindustani, Fixed & Movable Solfège

- Choose from Various Tuning Systems for Open Tunings or Historical Instruments:
Just Intonation, Pythagorean, Meantone, and many more. 

- You can also create and store your own custom temperaments.

- Enhance your open tunings with Just Intonation:
Experience the unique sound quality of pure tuning by setting the UniTuner to Just Intonation and the root note of your tuning

## Key features

- 1/10th cent accuracy
- Tone generator with multiple waveforms
- Over 200 instrument tunings
- Custom tuning creation
- Audio visualization (spectrogram)
- Intonation diagram (tuning map)

## Chart rankings

- #185 in Top Paid · Music (US App Store)

## Recent user reviews (5 of 5)

All indexed reviews: https://appshunter.io/ios/app/unituner-pro-chromatic-tuner/id6741528331/reviews.md

### 5/5 — die beste Tuner App auf dem Markt

*2026-05-27*

Ich hab wirklich viele Tuner-Apps getestet und keine hat mich auf so vielen Ebenen so überzeugt wie diese.

- aufgeräumtes und schickes Design, das sich anpassen lässt
- Features, die ich in keiner anderen App gesehen habe wie z.B.
- Anzeige der Note im Notensystem (gerade im Schulkontext sehr praktisch)
- Anzeige des Obertonspektrums: tatsächlich mehr als eine Spielerei. Gerade für Blasinstrumente sagt das viel über das Timbre des Tons aus, wie viele Obertöne mitschwingen. Eine wirklich interessante graphische Rückmeldung zum eigenen Ton.
- Tongenerator mit verschiedenen Wellenformen
- Etliche Stimmungen und auswählbar
- und seit Version 1.6: eine Transponierfunktion für Instrumente, die nicht klingend notiert sind.

Letztere hat der Entwickler innerhalb weniger Tage als Reaktion auf mein entsprechendes Feature Request hinzugefügt. 

Klar gibts auch kostenlose Apps, aber bei dem Funktionsumfang und so einem tollen Support unterstütze ich gerne einen unabhängigen Entwickler. Verglichen mit einem Hardware-Stimmgerät ist der Preis allemal angemessen.

**Developer response:** Vielen herzlichen Dank für diese ausführliche Besprechung und deinen Vorschlag für das Transpose-Feature!

### 5/5 — Ich mag den Tuner-Ball :)

*2026-05-15*

Coole App und toller Support !

**Developer response:** Vielen Dank!

### 5/5 — Very smooth and accurate

*2026-02-04*

My favorite tuner app ever since I installed it. Tunes as accurately as the Peterson strobe tuner app but Display is a lot more controlled. Very professional tool.

**Developer response:** Thanks 🙏

### 5/5 — Sehr gutes Stimmgerät

*2025-12-16*

Leicht zu bedienen und sehr genau.
Ich denke es gibt derzeit keine bessere Stimmgeräteapp..

**Developer response:** Das freut mich zu lesen! Vielen herzlichen Dank für deinen Kommentar.

### 5/5 — Gutes Stimmgerät

*2025-05-23*

Gutes Stimmgerät mit historischen Stimmungen. Eignet sich auch gut für verschiedene Lautenstimmungen

**Developer response:** Danke es freut mich zu lesen, dass dir die App gefällt!

## Frequently asked questions about UniTuner Pro

### What is the accuracy of UniTuner Pro?

UniTuner Pro offers precise 1/10th cent accuracy, ensuring highly accurate tuning for all notes from bass to the highest.

### Does UniTuner Pro have a tone generator?

Yes, UniTuner Pro includes a tone generator with Sine-Wave, Triangle, and Square-Wave options, useful for tuning drums or instruments by ear.

### How many instrument tunings does UniTuner Pro support?

UniTuner Pro supports over 200 tunings for string instruments, including many specialized and custom options. Users can also create and store their own custom tunings.

### Can I create my own tunings in UniTuner Pro?

Absolutely. UniTuner Pro allows you to create, store, and customize your own tunings and temperaments, offering extensive flexibility for unique instrument setups.

### What devices is UniTuner Pro available on?

UniTuner Pro is available for iPhone, iPad, and iPod touch, making it accessible to a wide range of Apple users.

### What is the price of UniTuner Pro?

UniTuner Pro is a paid application, priced at $7.99. This one-time purchase grants access to all its advanced tuning features.

### Does UniTuner Pro have ads?

No, UniTuner Pro is ad-free. As a paid application, it provides an uninterrupted tuning experience without advertisements.

### How often is UniTuner Pro updated?

The latest version, 1.6, was released on May 26, 2026, indicating a commitment to ongoing development and improvements for the application.

## Version history (last 5 releases)

### 1.6.1 — 2026-08-18

Bug fixes

### 1.6 — 2026-05-26

Transpose:

The output can be shifted by a specified number of semitones

### 1.5 — 2026-05-19

New Note names: Russian, Greek, Hindustani, Bengali, Chinese

iPad fixes for iOS 26

Bug fixes

### 1.4.4 — 2026-05-11

Bug fixes

### 1.4.3 — 2026-04-23

- Bug fixes

## Apps similar to UniTuner Pro

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [n-Track Tuner](https://appshunter.io/ios/app/n-track-tuner/id409786458) | 4.7 (3,166) | Free | Music |
| [Guitar Tuner + Ukulele & Bass](https://appshunter.io/ios/app/guitar-tuner-plus-ukulele-and-bass/id6465589001) | 4.6 (137) | Free | Music |
| [Pitched Tuner - Tuning App](https://appshunter.io/ios/app/pitched-tuner-tuning-app/id1457541750) | 4.6 (5,144) | Free | Music |
| [Tuner؜](https://appshunter.io/ios/app/tuner/id6469008353) | 4.5 (190) | Free | Music |
| [LunaTuna - Guitar Tuner](https://appshunter.io/ios/app/lunatuna-guitar-tuner/id1546894160) | 4.7 (261) | Free | Music |
| [iTuner - Chromatic Tuner](https://appshunter.io/ios/app/ituner-chromatic-tuner/id1119672835) | 4.4 (113) | Free | Music |

## More apps by Klaus Fecker

- [TapTock - Metronome & TapTempo](https://appshunter.io/ios/app/taptock-metronome-and-taptempo/id1514773565)
- [UniTuner - Chromatic Tuner](https://appshunter.io/ios/app/unituner-chromatic-tuner/id1546441866)

All apps by Klaus Fecker: https://appshunter.io/developer/1455227164

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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 2026-08-24.*