Comparison

KANTAN Chord vs Chord Memo

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

Head to head
About

KANTAN Chord

Features
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• Overview KANTAN Chord is a browser extension that converts various chord sites' song chords to its "degrees", also known as Nashville Numbers. (Former name: InstaChordizer) • Compatible sites - ULTIMATE GUITAR TABS(https://www.ultimate-guitar.com/) - U-フレット(https://www.ufret.jp/) - 楽器.me(https://gakufu.gakki.me/) - J-Total Music(https://music.j-total.net/) - Guitarians.com(https://guitarians.com/) - 91譜(https://www.91pu.com.tw/) • How to use Open the chord web page. From the browser extensions, choose KANTAN Chord icon and it opens a pop-up window. Choose from tabs "C,F,G" (original) , "I,IV,V" (roman numerals), or "1,4,5" (degrees). - "C,F,G" (original) Displays the chords in its original form. Select radio buttons change keys. - "I,IV,V" (roman numerals) Displays the chords' degrees, in standard roman numerals format. - "1,4,5" (degrees) Displays the chords' degrees, in numbers. Different symbols follow the "KANTAN Chord" system, based on the Nashville Number System. For more details, please visit this page: https://instachord.com/instruction/icn/ • Key analyzation KANTAN Chord automatically analyzes the song's key and displays it in red text with a yellow background banner. When the key changes during a song, it will be displayed with additional banners. E.g. "Key:E(-3)" or "Key:Ab(+1)" Numbers such as (-3) and (+1) represent half steps. If your instrument can transpose, try adjusting to these numbers. If the key analyzation is wrong or is difficult to play, try adjusting the analyzation sensitivity. - Ignore +-5 key changes When changing to a dominant (+5 half steps) or subdominant key (-5 half steps) , chords used will be very similar to its original key. When this option is turned on, KANTAN Chord will ignore +-5 key changes and stay in its original key. • Displayed keys You can choose keys outside of the auto-analyzed key. - Song's analyzed key The song's auto-analyzed most likely key is outlined in a box. - Difficulty rank The numbers in front of the key (Eg. ①, ②, ③...) are difficulty ranks when playing on the InstaChord, from easiest to most difficult. Please use as reference, when the analyzed key if wrong or when the original key is difficult to play. ① and ② are in bold, and ① is underlined. - Changing they key (in C,F,G tab) When in the C,F,G tab, you can pick different keys to transpose to. - Changing they key (in I,IV,V or 1,4,5 tab) In I,IV,V or 1,4,5 tab, you can change the base key. Apply when the analyzed key is wrong, or when the original key is difficult to play. If other keys are greyed-out, turn off analyzation sensitivity. • Options for C,F,G tab - Disable automatic loading KANTAN Chord will not take effect until the icon is pressed. Use this option if there are compatibility issues with the site's features or other extensions. This option is only effective in the C,F,G tab. - Hide key display KANTAN Chord displays the song's key and displays it in red text with a yellow background banner. Use this option to hide the key display. This option is only effective in the C,F,G tab. • Options for I,IV,V tab - b → # All half tones are represented with # - IIm, VIm → ii, vi Minor chords are represented with lower case roman numerals. • Options for 1,4,5 tab - 3b/7b → 8/9 (5b/2b → 8/9 for minor key) For the InstaChord, commonly used chords are allocated on the 8 and 9 buttons. Using this option will make use of these buttons. - Use minor key Allows the use of minor key • Beginner mode By selecting LV.0 / LV.1 / LV.2 shown on the first line, you can adjust the difficulty of the chords. In LV.0 / LV.1 mode, chords will be simplified. In LV.2 mode, all chords will be in their original form. This mode isl not available when minor key is selected.

About

Chord Memo

Compose and arrange music by writing and playing back chords. Practice singing or instruments like guitar and piano with this tool. It offers features for fine-tuning timing, exporting to MIDI, and changing instruments.

Highlights
  • Enter chords with dedicated keyboard
  • Control tempo, beat, and modulation
  • Playback entered chords
  • Display chords as degree names
  • Save notes with name and description
  • Export MIDI file
  • Change instrument
Features
Read full description

It's an app that lets you write chords and play them right back! Use it for composing and arranging music, as well as for practicing singing, guitar, piano, etc. Functions: - Enter chords with the dedicated keyboard (including slash and tension chords) - Control tempo, beat, and modulation - Playback the entered chords - Display chords as degree name (I, VI, ...) - Save notes with name and description - Playback with swing - Export MIDI file - Change instrument - Playback with metronome - Place chords fine timings - Copy/paste chords - Zoom score

Screenshots

KANTAN Chord4 screens
Chord Memo4 screens

Verdict

The call

The clearest difference is update cadence: KANTAN Chord at every 2 months against Chord Memo's every 7 months. KANTAN Chord also leads on device support (4 vs 1). On price, ads, in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

KANTAN Chord ships an update every 2 months, Chord Memo every 7 months. The most recent releases landed on September 8, 2026 and September 13, 2026 respectively.

Scorecard2 real differences · 8 level
KANTAN Chord versus Chord Memo: the parameters behind the verdict, then further details
ParameterKANTAN ChordChord Memo
PriceFreeFree
Rating4.7 (3 ratings) — better
Positive reviews77.8% of reviews
Number of ratings3 — better
Update frequencyEvery 2 months — betterEvery 7 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree
DevicesiPhone, iPad, iPod, Mac — betteriPhone
Requires iOS15.0 — better16.0
Further details — not scored
Size1 MB27 MB
Age rating4+4+
DeveloperInstaChord Corp.Kiichi Ito

In-app purchases

None

KANTAN Chord

No in-app purchases

None

Chord Memo

No in-app purchases

Questions

Is KANTAN Chord free?
KANTAN Chord is free to download, with no in-app purchases.
Is Chord Memo free?
Chord Memo is free to download, with no in-app purchases.
Do KANTAN Chord or Chord Memo have ads?
Neither KANTAN Chord nor Chord Memo shows ads.
Which is updated more often, KANTAN Chord or Chord Memo?
KANTAN Chord ships an update every 2 months, and Chord Memo every 7 months. Most recently, KANTAN Chord was updated on September 8, 2026 and Chord Memo on September 13, 2026.

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