Comparison

Gacha Chord vs Guitar Scale Memory

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

Head to head
About

Gacha Chord

Features
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Write a song in bed. Transcribe one on the train. Gacha Chord makes chord progressions simple: you just tap the chords you want. No keyboard, no DAW, so the idea gets built wherever you happen to be. 1. Let it suggest, and write in bed 2. Write down what you transcribe 3. Record it as a video, or read it while you play ■ 1. LET IT SUGGEST, AND WRITE IN BED The progression you would never have thought of. Place a chord and it offers what could come next: a weighted gacha built on functional harmony. Three safe picks and two adventurous ones. Every suggestion carries a one-line reason. Dominant resolutions, secondary dominants, tritone substitutions, modal interchange, passing diminished chords, chromatic mediants. A star marks the ones that connect most naturally. Press and hold a chord to swap it for a substitute. The further a chord strays from the key, the louder its color, so you can see how far you have wandered. ■ 2. WRITE DOWN WHAT YOU TRANSCRIBE Pull a song apart in the gaps of your day. It works just as well as a notebook for the chords you write or pick up by ear. - Scale degrees and real chord names, side by side. Change the key and the whole progression moves with it - Build the exact voicing: tensions, altered fifths, inversions, slash chords, octaves - Split the progression into verse and chorus, and transpose section by section - See dominant motion, ii-V pairs, pivot chords and the source of borrowed chords marked on the progression - Find saved progressions by name or tag ■ 3. RECORD IT AS A VIDEO, OR READ IT WHILE YOU PLAY Post it the moment it lands. The playing chord can fill the middle of the screen: the song title, the key you are in, the degree, the chord name, the image you attached and the note you left on that chord, all on one screen. Record your screen and the short video is done. Leave it looping on the big display and it doubles as your chart while you play. ■ GACHA CHORD PRO (ONE-TIME PURCHASE) A single purchase unlocks everything below. There is no monthly fee. - Unlimited saved progressions - Unlimited favorite chords - Recording: hum the melody in your head and play it back over the chords - Arpeggio playback - Notes and an image on a saved progression - MIDI export (opens straight in GarageBand, Logic and others) - iCloud Backup, with or without your recordings. Bring everything over to a new device ■ OTHER - No account required - The free version shows ads. Pro removes them - Everything you make is stored on your device, and in your own iCloud if you use Pro's iCloud Backup

About

Guitar Scale Memory

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Guitar Scale Memory helps you learn guitar scales through basic shapes, fretboard maps, and recall practice. Based on the Japanese learning material "ç©¶æ„”ă«èŠšăˆă‚„ă™ă„æœ€ćŒ·ăźă‚čă‚±ăƒŒăƒ«èš˜æ†¶æł•", the app lets you study a shape, apply it to the fretboard, and practice remembering positions. LESSONS Learn how to use the basic shape and practice pentatonic scales. Pro also includes the vertical basic-shape lesson. FRETBOARD MAP Choose a key and scale, then explore basic, diagonal, and full views. Switch between note names and scale degrees, and review chord examples. Pro includes all 16 scales and vertical movement for selected scales. TEST Practice recalling fretboard positions across three levels. Level 1 is free. Free users can practice Levels 2–3 with the two pentatonic scales; Pro expands these levels to every included scale. FREE AND PRO Free includes the basic lessons, two pentatonic scales, and tests. Eligible screens display banner ads and full-screen ads at every 10 eligible actions. The monthly Pro subscription unlocks the full scale catalog, vertical movement for selected scales, and the additional lesson. All ads are hidden while Pro is active. SUPPORTED TUNING Designed for a six-string guitar in E A D G B E standard tuning. Other tunings are currently unsupported. Japanese and English interfaces, with light and dark appearance options. SUBSCRIPTION Pro is an auto-renewable monthly subscription. See the localized store price in the app and the purchase confirmation sheet. Payment is charged to your Apple Account at confirmation. The subscription renews automatically unless canceled. Manage or cancel it in your Apple Account subscription settings after purchase. Privacy policy: https://shiga15679-crypto.github.io/apps/scale-memory/privacy/ Terms of use (Apple standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Gacha Chord4 screens
Guitar Scale Memory4 screens

Verdict

The call

The clearest difference is update cadence: Guitar Scale Memory at daily against Gacha Chord's every 5 days. Guitar Scale Memory also leads on iOS requirement (15.1 vs 17.0). 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

Both are free to download. Gacha Chord sells 1 one-off in-app purchase and Guitar Scale Memory sells 1 in-app purchase, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Gacha Chord ships an update every 5 days, Guitar Scale Memory daily. Both last shipped on October 24, 2026.

Scorecard2 real differences · 4 level
Gacha Chord versus Guitar Scale Memory: the parameters behind the verdict, then further details
ParameterGacha ChordGuitar Scale Memory
PriceFreeFree
Update frequencyEvery 5 daysDaily — better
AdsYesYes
In-app purchasesYesYes
DevicesiPhone, iPadiPhone, iPod
Requires iOS17.015.1 — better
Further details — not scored
Size11 MB34 MB
Age rating4+4+
DeveloperYUKI KIMURASHOICHI HASEGAWA

In-app purchases

1 purchases

Gacha Chord

One-time1
  • Gacha Chord Pro$6.99
1 purchases

Guitar Scale Memory

Subscriptions1
  • Guitar Scale Memory Pro$1.991 Month

Questions

Is Gacha Chord free?
Gacha Chord is free to download, with in-app purchases available.
Is Guitar Scale Memory free?
Guitar Scale Memory is free to download, with in-app purchases available.
Do Gacha Chord or Guitar Scale Memory have ads?
Both Gacha Chord and Guitar Scale Memory show ads.
Which is updated more often, Gacha Chord or Guitar Scale Memory?
Gacha Chord ships an update every 5 days, and Guitar Scale Memory daily. Most recently, Gacha Chord was updated on October 24, 2026 and Guitar Scale Memory on October 24, 2026.

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