# ChordFlash - ギターコード 練習

> Guitar chord reflex training app for faster, more accurate chord changes. (iPhone/iPad app by TETSUYA SAKAI.)

- Source: https://appshunter.io/ios/app/chordflash/id6782570398 (this page in markdown: same URL + `.md`)
- Developer: [TETSUYA SAKAI](https://appshunter.io/developer/1868393663)
- Category: Music, Education
- Price: Free
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 17.0 · 4 MB
- Languages: Japanese
- Released: 2026-06-26
- Data updated: 2026-10-25
- Monetization: free

## What is ChordFlash?

ギターを挫折する一番の理由を知っていますか?
「コードは覚えたのに、押さえるのが間に合わない」——これです。

ChordFlash は、コードを“暗記”で終わらせず、見た瞬間に指が動く「反射神経」を鍛えるトレーニングアプリ。フラッシュカードのテンポで次々と出題し、本物の指板に押さえて判定。気づけば、頭で考える前に手が動くようになります。

■ こんな人のためのアプリです  
・Fやバレーコードの「壁」で止まっている
・コードチェンジがワンテンポ遅れて、曲が止まる
・教則本は読んだ。でも“弾ける”実感がない
・スキマ時間で、地味だけど確実に上達したい

■ 見るだけで終わらせない、3秒の反復
コード名を見て、ダイアグラムに押さえて、判定。たった一度のタップに「思い出す→指を置く→確かめる」が全部詰まっています。
なんとなく眺める”練習とは、伸び方が違います。

■ 苦手なコードほど、多く出る  
あなたの正解率とスピードをアプリが自動で記録。苦手なコードを優先的に出題するから、得意な所ばかり繰り返すムダがありません。全コードを最短ルートで制覇できます。成績画面では「苦手コードTOP5」が一目でわかります。

■ 次に弾くコードまで、教えてくれる
弾いた流れからキーを推定し、「次に進むと気持ちいいコード」を理由つきで提案。王道・ポップ・ジャズ・ブルース…スタイル別に色分け表示。コードを覚えるだけでなく、“曲を作る・繋ぐ”楽しさへ踏み出せます。

■ 知りたいコードを、声で、すぐに 
「シーメジャーセブン」と話しかけるだけで押さえ方を表示。一覧からもサッと引ける、いつでも頼れるコード辞書つき。

■ 基本から7thまで、レベル別に 
メジャー／マイナー／メジャーセブン／セブンス／マイナーセブンを段階別に収録。「タイムアタック」で集中力を、「エンドレス」で自分のペースを。気分に合わせて選べます。

■ 1日5分の積み重ねが、一生もののコード力に
通学・通勤・寝る前の数分。ギターが手元になくても、指の記憶と耳は鍛えられます。

さあ、「覚えたつもり」を「弾ける」に変えましょう。
まずは無料で、最初の1分を

## Key features

- Chord reflex training
- Real fretboard feedback
- Adaptive difficulty for weak chords
- Next chord suggestions
- Voice-activated chord lookup
- Multiple practice modes

## Is ChordFlash safe?

Not enough ratings yet to assess ChordFlash.

## Is ChordFlash legit?

ChordFlash - ギターコード 練習 appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for ChordFlash is 65 out of 100 points across 7 verification signals from App Store and developer data.


## Frequently asked questions about ChordFlash

### What is ChordFlash?

ChordFlash is a music app designed to improve your guitar chord reflexes. It goes beyond memorization by training your fingers to respond instantly to chord names through timed challenges and real fretboard feedback.

### How does ChordFlash help with difficult chords like F or barre chords?

ChordFlash identifies your weakest chords based on your performance and prioritizes them in practice sessions. This ensures you spend more time on challenging chords, helping you overcome common guitar learning hurdles.

### Can ChordFlash help me with chord changes during songs?

Yes, ChordFlash focuses on building the muscle memory needed for quick and accurate chord changes. By training your reflexes, it helps eliminate delays that can stop the flow of playing a song.

### Does ChordFlash offer a chord dictionary?

Yes, ChordFlash includes a chord dictionary that you can access easily. You can also look up chord fingerings by speaking the chord name, making it a convenient reference tool.

### What types of chords does ChordFlash cover?

ChordFlash covers basic chords up to 7th chords, including major, minor, major seventh, seventh, and minor seventh chords. They are presented in a level-based progression.

### What are the practice modes in ChordFlash?

ChordFlash offers different practice modes to suit your needs, such as 'Time Attack' for focused concentration and 'Endless' mode for practicing at your own pace.

### Does ChordFlash have ads?

Based on the provided data, ChordFlash does not contain advertisements. It is a free application without any ad interruptions.

### What devices is ChordFlash available on?

ChordFlash is currently supported on iPhones. The app was released on June 26, 2026, with version 1.0.

## Version history (last 1 release)

### 1.0 — 2026-06-26

No release notes.

## More apps by TETSUYA SAKAI

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- [スキャナーAI 書類スキャン・OCR・PDF・領収書](https://appshunter.io/ios/app/ai-ocrpdf/id6772097525)
- [NoteFlash: Sight Reading](https://appshunter.io/ios/app/noteflash-sight-reading/id6775148130)

All apps by TETSUYA SAKAI: https://appshunter.io/developer/1868393663

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-25.*