Comparison

Chord Analyzer Z vs AxeNotes

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

Head to head
About

Chord Analyzer Z

Analyze music in real-time with visual and audible feedback. Record and playback audio, convert to MIDI, and identify chord structures and sound strength for instruments and vocals.

Highlights
  • Real-time chord and harmony analysis
  • Spectrum Roll Graph visualization
  • Audio recording and playback
  • MIDI file conversion and sharing
  • Flush Keyboard and Pitch Pipe
  • Zoom and scrollable keyboard
Features
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◎ Newly added conversion output to MIDI file (SMF) and file sharing function. ● Equipped with "Spectrum Roll Graph" that allows you to visually check the chord structure and sound strength of singing voice and harmony of musical instruments in real time. ● The sound picked up by the built-in microphone is recorded automatically saved. If you play the file, you can reproduce and check it as many times as you like. ● You can use not only recorded files but also audio files shared from other apps. ● The pitch and strength of chords and single notes can be checked both visually and audibly using "Flush Keyboard" and "Pitch Pipe". ● Simply touch the Spectrum Roll Graph to repeat playback of the same point any number of times. ● The keyboard and the graph can be freely controlled by intuitive touch operations for zooming and scrolling. ・Because the musical tone composition of multiple instruments and singing voices such as choruses and ensembles can be viewed in real time in the form of power spectra, it is also useful for play by ear . ・By playing the pitch pipe while looking at the spectrum graph, you can hear the harmony parts and the chords of the instruments. ・Please use it for checking and practicing the sound of the harmony part of karaoke. ・You can observe the overtone components that characterize musical instruments and singing voices. ・It is also useful for chord analysis and pitch analysis of music played in the background, such as Apple Music and YouTube. ■ Features of the app ・Real-time analysis of chords and harmony ・Various and rich screen display ・Screen mode linked to device orientation ・Real-time analysis of microphone input sound ・Recording of microphone input sound ・Playback of recorded files ・Playback loop, playback jump ・Analysis of recorded files ・Play shared files ・Analysis of shared files ・Pitch pipe ・Zoom & scroll keyboard ・Spectral Roll Graph ・Flash Keyboard ・(NEW) Conversion output to MIDI file (SMF) and file sharing ● Display items (real time) ・Spectrum Roll Graph ・MIDI note number ・Power Spectrum ・Oscilloscope ・Microphone input level ・Audio level meter ・Playback progress bar ● Sound playback ・Audio files (recorded files, shared files) ・Loop playback ・Replay jump ・Pitch pipe (6 types of tones, keyboard tap) ● Precautions ・To prevent howling, the microphone input signal is automatically disabled during pitch pipe or audio file playback. ・Instrumental sounds and singing voices contain sounds of various frequencies, such as fundamental tones and integer harmonics, and this app allows you to visually observe them.

About

AxeNotes

Read full description

Choose Chromatic to see all the Notes on the Fretboard (with sharps or flats). Choose Diatonic to see all the Major and Minor Scales from the Circle of Fifths. Hundreds of combinations! Click on any note to hear the note, show the note name, see the music notation , and find all locations of that note on a guitar.

Screenshots

Chord Analyzer Z4 screens
AxeNotes4 screens

Verdict

The call

The clearest difference is update cadence: Chord Analyzer Z at every 4 months against AxeNotes's every 11 months. Chord Analyzer Z also leads on iOS requirement (13.0 vs 16.2). On price, ads, in-app purchases and device support 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

Chord Analyzer Z costs $1.99 and AxeNotes $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Chord Analyzer Z ships an update every 4 months, AxeNotes every 11 months. The most recent releases landed on October 7, 2026 and October 27, 2026 respectively.

Scorecard2 real differences · 6 level
Chord Analyzer Z versus AxeNotes: the parameters behind the verdict, then further details
ParameterChord Analyzer ZAxeNotes
Price$1.99$1.99
Positive reviews33.3% of reviews—
Update frequencyEvery 4 months — betterEvery 11 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better16.2
Further details — not scored
Size29 MB6 MB
Age rating4+4+
DeveloperMasanori KatsutaJoseph Svantner

In-app purchases

None

Chord Analyzer Z

No in-app purchases

None

AxeNotes

No in-app purchases

Questions

Is Chord Analyzer Z free?
Chord Analyzer Z costs $1.99, with no in-app purchases.
Is AxeNotes free?
AxeNotes costs $1.99, with no in-app purchases.
Do Chord Analyzer Z or AxeNotes have ads?
Neither Chord Analyzer Z nor AxeNotes shows ads.
Which is updated more often, Chord Analyzer Z or AxeNotes?
Chord Analyzer Z ships an update every 4 months, and AxeNotes every 11 months. Most recently, Chord Analyzer Z was updated on October 7, 2026 and AxeNotes on October 27, 2026.

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