# UniTuner - Chromatic Tuner — Free Tuner for any Instrument

> Precise chromatic tuner with advanced features for musicians. (iPhone/iPad app by Klaus Fecker.)

- Source: https://appshunter.io/ios/app/unituner-chromatic-tuner/id1546441866 (this page in markdown: same URL + `.md`)
- Developer: [Klaus Fecker](https://appshunter.io/developer/1455227164)
- Category: Music, Productivity
- Price: Free with in-app purchases
- Rating: 4.60/5 from 127 App Store ratings · 199 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.6 · 4 MB
- Languages: American English, French (France), German (Germany), European Spanish
- Released: 2021-02-17
- Data updated: 2026-08-30
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/unituner-chromatic-tuner/id1546441866/reviews.md

## What is UniTuner?

Features:

- Capo Simulation:
Simulate a capo on your instrument while maintaining familiar results.

- 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 Sinewave, Triangle, and Square-Wave options.

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

- Tuning Map:
The Tuning Map is a tool for tuning notes of instruments that only sound briefly. So, if the tuner doesn't show anything yet, you can already read out the pitch in the Tuning Map.

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

- 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

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

- Tone Names: English, German, Japanese, 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

- Capo Simulation
- Accurate Cent Readout
- Tone Generator
- Audio Visualization (Spectrum)
- Tuning Map
- Over 200 Tunings
- Customizable Concert Pitch

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Silver Supporter | $1.99 | one-time |
| Gold Supporter | $3.99 | one-time |
| Purple Supporter | $5.99 | one-time |
| Emerald Supporter | $7.99 | one-time |
| Sapphire Supporter | $24.99 | one-time |


## Recent user reviews (10 of 199)

All indexed reviews: https://appshunter.io/ios/app/unituner-chromatic-tuner/id1546441866/reviews.md

### 4/5 — Yepr

*2026-06-13, version 4.2.1*

Obviously not better than a physical tuner, but super accurate and handy is recommend as it’s the best out there

### 5/5 — Best out there

*2026-06-10*

I can use this any time and always get great sound. Well designed, very reliable, I don’t use anything else for tuning.

**Developer response:** Thanks!

### 5/5 — All you need to know is the tune

*2026-05-09, version 4.1*

It helps tune my ukulele and all I need to know is what the tune sounds like

### 5/5 — Awesome app

*2026-05-05*

Everything is great

**Developer response:** Thank you 🙏

### 5/5 — W app

*2026-05-01*

One of the best tuning apps for various instruments

**Developer response:** Thx

### 5/5 — works very well

*2026-05-01, version 4.1*

very good

### 5/5 — Just amazing

*2026-04-01, version 3.5*

So simple and professional!!

### 5/5 — Top

*2026-03-28, version 3.2*

Gutes Produkt

### 5/5 — Wow

*2026-02-19, version 3.5*

Great runner

### 4/5 — It’s good

*2026-02-13*

Just too many ads when I’m trying to tune myself

**Developer response:** Thank you for your rating. Maybe the word “Ads” is a bit misleading. Because I simply ask users to support my work, and only once per use of the app.

## Frequently asked questions about UniTuner

### What does UniTuner do?

UniTuner is a chromatic tuner designed for a wide array of musical instruments. It offers precise tuning with advanced features like capo simulation, a tone generator, and audio visualization to help musicians achieve accurate pitches and understand their instrument's sound.

### What are the key features of UniTuner?

Key features include capo simulation, accurate cent readout for precise tuning, a tone generator with multiple wave options, audio visualization of the instrument's spectrum, a tuning map for quick pitch reading, and a timeline to visualize pitch changes. It also supports over 200 tunings and customizable concert pitch.

### How much does UniTuner cost?

The app is free to download and use, but it offers in-app purchases for additional features or content. Specific pricing for these in-app purchases can be found within the app store listing.

### What instruments can I tune with UniTuner?

UniTuner supports a vast number of string instruments, including guitars, basses, ukuleles, violins, cellos, banjos, and many more, with over 200 specific tunings available. It also includes options for various tuning systems and the ability to create custom temperaments.

### Can I use UniTuner to tune drums?

Yes, the tone generator feature in UniTuner can be used to tune drums or other instruments by ear. It offers Sinewave, Triangle, and Square-Wave options to assist in achieving the desired pitch.

## Version history (last 5 releases)

### 4.3 — 2026-08-03

Adjustable Window Size for the iPad

### 4.2.1 — 2026-06-03

Bug fix

### 4.2 — 2026-06-02

Bug fixes & lots of love!

### 4.1 — 2026-04-26

Bug fixes

### 4.0.1 — 2026-04-23

The issue with bass range detection has been resolved

## Apps similar to UniTuner

| App | Rating | Price | Category |
| --- | --- | --- | --- |
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## More apps by Klaus Fecker

- [TapTock - Metronome & TapTempo](https://appshunter.io/ios/app/taptock-metronome-and-taptempo/id1514773565)
- [UniTuner Pro - Chromatic Tuner](https://appshunter.io/ios/app/unituner-pro-chromatic-tuner/id6741528331)

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

## Related topics

[chromatic tuner instrument](https://appshunter.io/ios/topics/chromatic-tuner-instrument) · [universal tuner](https://appshunter.io/ios/topics/universal-tuner) · [afinador cromatico](https://appshunter.io/ios/topics/afinador-cromatico) · [gengou](https://appshunter.io/ios/topics/gengou) · [klaus thul](https://appshunter.io/ios/topics/klaus-thul)

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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 2026-08-30.*