Best Post-Tonal Apps

67+ iOS apps curated and reviewed

4.9 avg rating

16 free apps

Updated September 2026

Every iPhone needs a few good post-tonal apps. We benchmark 67+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.

Compare top Post-Tonal Apps (September 2026)

#	App	Price	Rating	Ads	In-App Purchases	Updated
1	Post Tonal Calculator	Free	4.5★ (2)	No	No	May 2026
2	Post-Tonal Tool Kit	$4.99	4.3★ (6)	No	No	May 2026
3	Music By Numbers	Free	5.0★ (6)	No	No	Sep 2026
4	Post-Tonal Theory Calculator	$3.99	5.0★ (2)	No	No	Sep 2026
5	Pitchy	Free	4.7★ (15)	No	Yes	May 2026
6	Sound Union	Free	—	No	No	May 2026
7	Bass Booster, Volume Equalizer	Free	—	No	Yes	Sep 2026
8	reset: ambient music	Free	—	No	No	May 2026

More Post-Tonal apps to explore

Post-Tonal Theory Calculator

by L Tomlin

$3.99

This app analyzes musical pitch class sets using post-tonal theory. It calculates normal and prime forms, displays Forte numbers, and generates interval class vectors. Users can also transpose, invert, complement, and play sets as melodies or chords, with an included overview of set theory.

Calculate Normal Form and Prime FormDisplay Forte NumberCalculate interval class vector

Pitch Class Set Toolkit

Free

Analyze and compose music with this toolkit for pitch class set theory. It offers tools for calculating normal form, prime form, and more, aiding in musical composition and analysis.

Pitch Class Set analysisNormal Form, Prime Form, Forte Name12-tone Matrix Calculator

🎵 Music

(15)

free with in-app purchases

Bass Booster, Volume Equalizer

Music Boost & Sound Amplifier

Free

Enhance your audio experience with a powerful equalizer and bass booster. Sculpt sound with professional-grade tools to reveal hidden details and feel the music.

Precision multi-band equalizerPowerful bass boostIntelligent volume amplifier

🎵 Music

(0)

free with in-app purchases

Echo Frame: Tonal Resonance

A study in sight and sound

Free

This app analyzes a photograph's narrative essence and visual dimensions to find its perfect musical counterpart. It integrates with your music library or the global catalog to create intentional pairings, offering discovery modes and shareable exports.

Image-to-music matchingNarrative essence analysisResonance framework evaluation

See the color of sound.

Free

Experience music and sound visually by mapping audio frequencies to colors and musical notes. This app allows you to see the patterns within sound in a unique and immersive way.

Visualizes sound frequenciesMaps frequencies to colorsMaps frequencies to musical notes

Enhance your musical understanding with a comprehensive guide to harmony and voicings. Explore a vast library of chords, practice with interactive tools, and access video tutorials designed for musicians.

Extensive chord and voicing libraryInteractive mallet position guidePolyphonic keyboard with vibraphone/marimba sounds

Learn the names and key signatures of musical tonalities. This application provides a straightforward way to master tonal concepts.

Learn tonality namesLearn key signaturesMusic education tool

Your Music Theory Companion

$0.99

This app provides musicians with instant access to a comprehensive music theory reference. It includes scales, chords, harmonizations, and notes with audio playback and support for multiple notation systems. It's designed for songwriting, studying, and quick reference.

1500+ scales, chords, and harmonizationsChord harmonizations for every scaleAudio playback for every entry

This app provides a configurable melodic metronome designed for ear training and improvisation practice. It generates unique melodic lines based on selected intervals, encouraging users to explore complex rhythmic patterns and appreciate ephemeral musical phrases.

Configurable melodic metronomeInterval-based melody generationEar training for improvisers

Learn musical tonalities and their key signatures through an engaging matching game. This app makes memorizing musical concepts fun and accessible for aspiring musicians.

Memorize musical tonalitiesLearn key signaturesMatching game format

Explore rare and unusual music through curated podcast episodes. Discover artists and sounds beyond mainstream airwaves, from ancient folk to avant-garde experiments. This app offers an auditory adventure for the curious listener.

Curated podcast episodesExploration of rare musicDiscovery of unusual artists

🎵 Music

(1)

free

Quanta / Signal / Noise

by RT Sixty Ltd

Free

Explore a unique musical experience focused on sound textures, shapes, and energies rather than traditional melody or rhythm. Reconfigure auditory landscapes and create your own versions of avant-garde compositions through interactive interfaces.

Focus on sound textures and dynamicsManual variPlay interface for reconfigurationAutomatic variPlay for algorithmic generation

Tonality 3D visualization + AR

Free

This app visualizes music tonality in 3D using advanced algorithms. It analyzes audio from your microphone to identify chords and keys, displaying them with a rotating camera or in augmented reality.

3D tonality visualizationAudio analysis for pitch and contextChord and key identification

🎵 Music

(1)

free

Tetratonics: The 4th Dimension

Four Notes. Infinite Color.

Music for sleep, meditation...

Free

Experience immersive soundscapes designed for meditation, sleep, focus, and deep relaxation. This app generates unique, evolving audio experiences to help regulate your nervous system and cultivate presence. It supports various uses, from personal wellness to professional client sessions.

Infinitely evolving soundscapesSupports sleep and meditationEnhances focus and creativity

💪 Health & Fitness

(4)

free with in-app purchases

FAQ about Post-Tonal

What are the best post-tonal apps for iPhone?

Post Tonal Calculator tops our post-tonal apps ranking as of September 2026, with a 4.5-star average from 2 App Store ratings, and it's free to download.

Are there free post-tonal apps for iPhone?

Yes — 16 of the top post-tonal apps we rank are free to download, including Post Tonal Calculator and Music By Numbers.

Does Post Tonal Calculator have ads or in-app purchases?

Post Tonal Calculator has no ads and has no in-app purchases, according to its App Store listing as of September 2026.

How many post-tonal apps are on the App Store?

We track 67+ post-tonal apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.

What is the Post Tonal Calculator used for?

The Post Tonal Calculator is a free tool designed for musicians to experiment with atonal music composition. It helps in generating and exploring tone rows and their variations based on 12-tone techniques.

Can I generate tone rows randomly with Post Tonal Calculator?

Yes, the Post Tonal Calculator allows you to choose notes manually or generate them randomly to create your primary tone row for further analysis.

Best Post-Tonal Apps

Compare top Post-Tonal Apps (September 2026)

Top Picks for Post-Tonal

Post Tonal Calculator by John Holland

Post-Tonal Tool Kit by A Squared Applications

Music By Numbers by Timothy Bausch

More Post-Tonal apps to explore

FAQ about Post-Tonal

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