ChordMapMidi vs AxeScales
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ChordMapMidi
This app is a MIDI controller for exploring musical chords and progressions in major and minor keys. It sends note information to other synthesizer apps on your device, making it a portable tool for musicians and educators.
- Explore chords and progressions
- Major and minor keys
- MIDI controller functionality
- Sends note information to synth apps
- Portable music tool
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ChordMapMidi allows you to explore chords and chord progressions in both major and minor keys, one finger tap at a time. Note: ChordMapMidi is a MIDI controller. It doesn't create sound on its own. It sends note information to synthesizer apps you have on your device. ChordMapMidi is useful for songwriters, MIDI musicians, music educators... especially in places where the only instrument you have is the phone in your pocket. Have fun exploring chords and progressions!
AxeScales
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Learn the Major and Minor Scales on Guitar. Select from Heptatonic (7 Note), Hexatonic (6 Note), Pentatonic (5 Note), Blues (6 Note), or Arpeggios (3 Notes), from any Root Note, for each Major and Minor Scale. (A total of 120 different combinations!) Shows the Scale Degree of each note in the Scale, with the Root Notes of each Scale highlighted. Each note will play when clicked. Fret numbers are shown below the Fretboard.
Screenshots
Verdict
The clearest difference is update cadence: AxeScales at every 3 days against ChordMapMidi's every 8 months. AxeScales also leads on price ($1.99 vs $3.99). On ads, in-app purchases, device support and iOS requirement 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
ChordMapMidi costs $3.99 and AxeScales $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
ChordMapMidi ships an update every 8 months, AxeScales every 3 days. The most recent releases landed on October 23, 2026 and October 27, 2026 respectively.
| Parameter | ChordMapMidi | AxeScales |
|---|---|---|
| Price | $3.99 | $1.99 — better |
| Rating | 5.0 (5 ratings) — better | — |
| Positive reviews | 52.9% of reviews | — |
| Number of ratings | 5 — better | — |
| Update frequency | Every 8 months | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 16.6 | 16.2 — better |
| Further details — not scored | ||
| Size | 4 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Malcolm Mugglin | Joseph Svantner |
In-app purchases
ChordMapMidi
No in-app purchases
AxeScales
No in-app purchases
