Comparison

Twelve Tone vs JustPitch

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Twelve Tone

This app helps musicians and teachers compose and analyze music using dodecaphonic and set theory. It allows users to enter tone rows, automatically generates musical matrices, and provides playback and sharing options for compositions.

Highlights
  • Enter tone rows via staff or piano keyboard
  • Automatic generation of Prime, Inversion, Retrograde, RI matrices
  • Real-time Interval Vectors and Circular Analysis updates
  • Save and manage tone rows with names and markings
  • Share PDF of notation, keyboard, and analysis
  • Listen to row playback with selected rhythm patterns
  • Matrix audio playback for pitch identification
Read full description

An extensive music composition and analysis tool. An indispensable resource for any musician or music teacher interested in dodecaphonic and set theory analysis. • Enter a tone row by touching the staff or playing the piano keyboard. • It lets you know if any notes are repeated by highlighting both notes, checking enharmonic values regardless of octave or accidentals. • Automatically creates the Prime, Inversion, Retrograde, and Retrograde Inversion Magic Square. • Constantly updates the Interval Vectors and Circular Analysis of the tone row as you edit it. • Save your rows (rows may contain from 1 to 12 notes), complete with name and current P, R, I, RI matrix markings. Saved rows appear in a list with their name and midi numbers to help you identify them. • Share a pdf of the notation, piano keyboard, and circular analysis. • Watch and listen to your row played with a selected rhythm pattern. • Playback: - Prime - Prime then Retrograde - Retrograde then Prime - Retrograde - Inversion - Inversion then Retrograde Inversion - Retrograde Inversion then Inversion - Retrograde Inversion • Each can be repeated and transposed with each iteration. • The Root is kept within an octave above and below the original pitch when looping and transposing. • Matrix Audio: Hear the pitches as you mark them in the matrix square. The marks indicate the row form in which the pitch belonged; Prime, Inversion, Retrograde, and Retrograde Inversion. • Lock the prime row and transpose it to C to use the Absolute Pitch Method for row labeling in the matrix. Comes preloaded with the following rows: Alban Berg's Lyric Suite Babbitt's Composition for Four Instruments Schoenberg's Variations for Orchestra Op.31 Schoenberg's Piano Piece Op.33a Webern's Concerto Op.24 Webern's Piano Variations Op.27 Webern's String Quartet Op.28

About

JustPitch

Develop your perfect pitch with a comprehensive range of keys and multiple voice options. A free lite version is available to try before purchasing the full application.

Highlights
  • Perfect pitch training
  • Full key range
  • Multiple voices
  • Free lite version available
  • Develop musical ear
Features
Read full description

You can train perfect pitch in full key range with multiple voices. Please try the free version "JustPitch Lite" before buying​ this app.

Screenshots

Twelve Tone4 screens
JustPitch4 screens

Verdict

The call

The clearest difference is rating: JustPitch at 5.0 against Twelve Tone's 4.7. JustPitch also leads on price ($0.99 vs $4.99) and iOS requirement (16.6 vs 26.0). Twelve Tone's advantage is ratings volume (16 vs 2). On review sentiment, update cadence, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Twelve Tone costs $4.99 and JustPitch $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

JustPitch holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Twelve Tone has 16 ratings behind it against 2, so its average is the more settled of the two. Written reviews split almost evenly too, at 70% and 71% positive.

UpkeepUpdate frequency

Twelve Tone ships an update every 18 months, JustPitch every 10 months. The most recent releases landed on November 1, 2026 and November 6, 2026 respectively.

Scorecard4 real differences · 6 level
Twelve Tone versus JustPitch: the parameters behind the verdict, then further details
ParameterTwelve ToneJustPitch
Price$4.99$0.99 — better
Rating4.7 (16 ratings)5.0 (2 ratings) — better
Positive reviews70.0% of reviews70.6% of reviews — better
Number of ratings16 — better2
Update frequencyEvery 18 monthsEvery 10 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPadiPhone, iPad
Requires iOS26.016.6 — better
Further details — not scored
Size50 MB8 MB
Age rating4+4+
DeveloperPatrick Q. KellyTomohiro Yamashita

Customer experience

Twelve Tone

All ratings16 ratings
Positive93.8%
Neutral6.3%
Negative0.0%
Written reviews10 reviews
Positive70.0%
Neutral10.0%
Negative20.0%

JustPitch

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews17 reviews
Positive70.6%
Neutral17.6%
Negative11.8%

In-app purchases

None

Twelve Tone

No in-app purchases

None

JustPitch

No in-app purchases

Questions

Is Twelve Tone free?
Twelve Tone costs $4.99, with no in-app purchases.
Is JustPitch free?
JustPitch costs $0.99, with no in-app purchases.
Which has better reviews, Twelve Tone or JustPitch?
JustPitch is rated higher. Twelve Tone averages 4.7 out of 5 from 16 ratings, while JustPitch averages 5.0 from 2 ratings.
Do Twelve Tone or JustPitch have ads?
Neither Twelve Tone nor JustPitch shows ads.
Which is updated more often, Twelve Tone or JustPitch?
Twelve Tone ships an update every 18 months, and JustPitch every 10 months. Most recently, Twelve Tone was updated on November 1, 2026 and JustPitch on November 6, 2026.

Other comparisons