Best Twelve-Tone Tuner Apps

248+ iOS apps curated and reviewed

4.1 avg rating
18 free apps
Updated August 2026

From beginner-friendly picks to power-user tools, our twelve-tone tuner list covers 248+ iPhone apps updated through August 2026. Compare ratings, prices, and screenshots in one place.

Compare top Twelve-Tone Tuner Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Twelve-Tone TunerTwelve-Tone TunerFree5.0★ (1)YesNoAug 2026
2Toone - Chromatic TunerToone - Chromatic TunerFree5.0★ (1)NoNoMay 2026
3Tone – Chromatic TunerTone – Chromatic TunerFree1.0★ (1)NoNoAug 2026
4BOSS TunerBOSS TunerFree3.7★ (118)NoNoAug 2026
5KeyTunerKeyTunerFree4.7★ (1.7K)NoNoAug 2026
6Tuner by PiascoreTuner by Piascore$4.994.8★ (1.4K)NoNoAug 2026
7Harmonic TunerHarmonic TunerFree5.0★ (1)NoNoMay 2026
8Tuner: Notes & HzTuner: Notes & HzFreeNoNoJul 2026

Top Picks for Twelve-Tone Tuner

Twelve-Tone Tuner#1

Twelve-Tone Tuner by 小军 王

Simple And Easy Tuner.
Editor's Choice
🎵 Music
5.0(1 ratings)
FreeAds
Twelve-Tone Tuner screenshot 1
Twelve-Tone Tuner screenshot 2
Twelve-Tone Tuner screenshot 3
Twelve-Tone Tuner screenshot 4
Twelve-Tone Tuner screenshot 5

A professional vocal and instrument tuning application. It offers interfaces for various instruments and supports tuner and sound modes with fine-tuning capabilities.

Toone - Chromatic Tuner#2

Toone - Chromatic Tuner by Sumu Pitchayan

Guitar, Instrument & Vocal
Strong Contender
🎵 Music
5.0(1 ratings)
Free
Toone - Chromatic Tuner screenshot 1
Toone - Chromatic Tuner screenshot 2
Toone - Chromatic Tuner screenshot 3
Toone - Chromatic Tuner screenshot 4

A fast and clean chromatic tuner for various instruments, including guitar, bass, and vocals. It offers haptic feedback, a pitch reference keyboard, and adjustable A=440 tuning. This app is completely free with no ads or subscriptions.

Tone – Chromatic Tuner#3

Tone – Chromatic Tuner by Yuta Tamaru

Guitar, violin & tuning fork
Worth Considering
🎵 Music
1.0(1 ratings)
Free
Tone – Chromatic Tuner screenshot 1
Tone – Chromatic Tuner screenshot 2
Tone – Chromatic Tuner screenshot 3

This app provides instant and clear pitch detection for musical instruments. It features an analog needle display and color changes to indicate when you are in tune, with an optional tuning fork mode for ear training. It prioritizes user privacy by processing audio solely on-device and working offline.

More Twelve-Tone Tuner apps to explore

4
BOSS Tuner
BOSS Tuner
BOSS Tuner
by Roland Corporation
Free

This app offers world-renowned chromatic tuning technology for iOS devices, replicating the look and feel of a popular pedal tuner. It uses your device's microphone to tune a wide range of instruments, from guitars and basses to strings and brass. An audible reference pitch function and enlarged meter view enhance the tuning experience.

Hands-free chromatic tuningAudible reference pitchHorizontal screen for enlarged meter
🎵 Music
(118)
free
5
KeyTuner
KeyTuner
KeyTuner
Precision Instrument Tuner
Free

This app offers precise chromatic tuning for a wide range of instruments with a clear, visual interface. It features advanced algorithms for accurate detection of notes, including those with overtones and vibrato, making it suitable for both tuning and intonation practice.

Full-range chromatic tuningVisual feedback for fine and coarse tuningAdvanced digital algorithm for precision
🎵 Music
(1.7K)
free
6
Tuner by Piascore
Tuner by Piascore
Tuner by Piascore
The Ultimate Chromatic Tuner
$4.99

This app provides a chromatic instrument tuner and pitch pipe for musicians. It offers accurate tuning for a wide range of instruments using your device's microphone, with advanced features for precise adjustments.

Chromatic instrument tuningPitch pipe/tone generatorCustom temperaments
🎵 Music
(1.4K)
free
7
Harmonic Tuner
Harmonic Tuner
Harmonic Tuner
Precision Tuner + Harmonics
Free

This app offers precision tuning for string instruments with a live readout and detailed harmonic analysis. It helps musicians check intonation, refine notes for recording, and study overtones and sustain with a focused workflow.

Chromatic tuning with cents and frequencyInstrument presetsLive tuning display
🎵 Music
(1)
free
8
Tuner: Notes & Hz
Tuner: Notes & Hz
Tuner: Notes & Hz
Tuner: Notes & Hz
Free
🔧 Utilities
(0)
9
Pano Tuner Lite
Pano Tuner Lite
Pano Tuner Lite
Guitar, violin, cello & piano
Free

This application listens to your instrument's sound and displays its pitch, allowing for accurate tuning by showing the deviation from the desired note. It offers a wide pitch sensor range and customizable settings for concert-A frequency and sensitivity.

Listens to instrument sound and displays pitchAccurate tuning via offset from desired pitchQuick and sensitive response
🎵 Music
(7.6K)
free with in-app purchases
10
Tuner
Tuner
Tuner
with Metronome
Free

This music tool helps you tune instruments by detecting sound frequencies and displaying musical notation. It also includes a metronome with adjustable tempo and time signatures, and allows simultaneous use of both features.

Instrument tuningSound frequency detectionMusical notation display
🎵 Music
(1)
free with in-app purchases
11
Tuner - Guitar, Ukulele, Bass
Tuner - Guitar, Ukulele, Bass
Tuner - Guitar, Ukulele, Bass
All-Instrument Tuner
Free

This app offers a fast, accurate, and easy-to-use tuner for over 50 instruments, including guitar, bass, and ukulele. It features auto-tuning, chromatic mode, and the ability to save favorite tunings, making it suitable for musicians of all levels.

250+ tunings for 50+ instrumentsAuto-tuning to perfect pitchChromatic tuner mode
🎵 Music
(33)
free with in-app purchases
12
insTuner Free - Chromatic Tuner
insTuner Free - Chromatic Tuner
insTuner Free - Chromatic Tuner
by Polybeat PTE. LTD.
Free

This app offers precise chromatic tuning for a wide range of musical instruments. It features an intuitive interface with a unique note wheel and tone generator, supporting various input modes for accurate tuning.

Chromatic tuning±1/1000 semitone precisionFixed note wheel display
🎵 Music
(5K)
free with in-app purchases
13
Fender Tune: Guitar Tuner App
Fender Tune: Guitar Tuner App
Fender Tune: Guitar Tuner App
Chords, Scales and Metronome
Free

This app offers precision tuning for guitar, bass, and ukulele with multiple modes and customizable options. It also provides a comprehensive suite of practice tools, including chord and scale libraries, and metronome functionality.

Precision auto-tune modeManual and chromatic tuning26 alternate and custom tunings
🎵 Music
(149K)
free with in-app purchases
14
PerfectPitch - Chromatic Tuner
PerfectPitch - Chromatic Tuner
PerfectPitch - Chromatic Tuner
Guitar, Bass, Ukulele, Violin
Free
$0.99 | 100% OFF
🎵 Music
(0)
15
Tuner ∞
Tuner ∞
Tuner ∞
by Panoramic Software Inc.
Free

This highly accurate and customizable digital tuner is essential for musicians of all levels. It offers visual feedback on pitch deviation and sound frequency, with automatic or manual note selection. An optional metronome with perfect timing is available via in-app purchase.

High precision digital tuningVisual pitch deviation indicatorsSound frequency graph display
🎵 Music
(12)
free with in-app purchases
16
Tuner Lite by Piascore
Tuner Lite by Piascore
Tuner Lite by Piascore
The Ultimate Chromatic Tuner
Free

This app provides accurate chromatic tuning for a wide range of musical instruments using your device's microphone. It features a responsive needle meter, pitch pipe, and automatic calibration for precise tuning. An optional full version offers advanced features.

Chromatic instrument tuningBuilt-in microphone supportNeedle meter display
🎵 Music
(9.9K)
free with in-app purchases
17
Tuner
Tuner
Tuner
The only app for your watch
$0.99
$1.99 | 50% OFF

This application uses your device's microphone to help you tune instruments. It supports tuning to custom notes and is compatible with smartwatches.

Microphone-based tuningCustom note tuningInstrument tuning
🎵 Music
(40)
free
18
Tuner PRO: guitar,ukulele,bass
Tuner PRO: guitar,ukulele,bass
Tuner PRO: guitar,ukulele,bass
Cello, violin, piano tuning
Free

Easily tune a variety of string instruments like guitars, ukuleles, violins, and cellos. Features customizable tuning presets, a chromatic tuner, and a built-in tuning fork. Designed for clear visibility from a distance.

Tunes electric, acoustic, and bass guitarsSupports violin, cello, and ukuleleCustomizable tuning presets (e.g., Drop D)
🎵 Music
(19)
free
19
Chromatic tuner - FlashTune
Chromatic tuner - FlashTune
Chromatic tuner - FlashTune
Perfect tuning with our tuners
Free

Achieve perfect intonation with this highly accurate tuning application. It supports a wide range of instruments and offers customizable settings for musicians of all levels. Its intuitive interface makes tuning quick and easy.

High precision tuning (0.1 cent accuracy)Customizable tuning settingsIntuitive user interface
🔧 Utilities
(55)
free
20
Guitar Tuner - Simply Tune
Guitar Tuner - Simply Tune
Guitar Tuner - Simply Tune
Ads Free, Everything Unlocked
Free

This app provides a user-friendly and accurate way to tune various stringed instruments. It offers step-by-step visual guidance, auto and manual tuning modes, and an essential chord library for learning songs.

Instrument tuning (guitar, bass, ukulele)Step-by-step visual guidanceAuto-tune mode
🎵 Music
(102K)
free with in-app purchases

FAQ about Twelve-Tone Tuner

What are the best twelve-tone tuner apps for iPhone?
Twelve-Tone Tuner tops our twelve-tone tuner apps ranking as of August 2026, with a 5.0-star average from 1 App Store ratings, and it's free to download.
Yes — 18 of the top twelve-tone tuner apps we rank are free to download, including Twelve-Tone Tuner and Toone - Chromatic Tuner.
Twelve-Tone Tuner shows ads and has no in-app purchases, according to its App Store listing as of August 2026.
We track 248+ twelve-tone tuner apps on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.
Twelve-Tone Tuner supports tuning for vocals, guitar, violin, bass, ukulele, and erhu. It is designed to be a versatile tool for a range of musical needs.
Yes, Twelve-Tone Tuner supports both tuner and sound working modes. This allows users to choose the mode that best suits their tuning and practice requirements.