Keys Trainer vs Compose Studio 譜面入力
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Keys Trainer
Master key signatures and scales with this music learning app. Practice identifying keys, understanding note sharps/flats, and instantly recognizing scale layouts on a keyboard. Features include customizable practice, passive viewing, and a challenging game mode.
- Key signature recognition
- Scale layout identification
- Customizable learning range
- Intelligent training based on performance
- Practice, View, Game, and Search modes
- Earn coins, medals, and trophies
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Do you want to be capable of recognizing the key signatures at first sight? That is, when you see a key signature, you know what key it is and what notes should be sharp or flat immediately. Do you want to have the ability of instantly identifying the scale layout on a piano/keyboard for a given key? If your answer is yes, check out this app. It can help you acquire these skills which can definitely benefit your music learning and piano playing. Main Features: • Practice Mode You learn at your own pace simply by answering the question, and if you are wrong, the correct answer will be shown for the duration of your choice. • View Mode You don’t need to do anything but watching, the questions and answers will be shown automatically after the delay of your choice. Good for lazy people like me. • Game Mode In this exciting countdown mode, you can challenge yourself and earn as many coins, medals, and trophies as you can. • Search Mode This mode allows you to look up the keys by name, key signature or keyboard. • Learning Range Customization You can customize your learning range sot that you can focus on improving your weaknesses. • Intelligent Training Each question is generated intelligently based on the statistical information of your performance so that it can turn your weaknesses into strengths.
Compose Studio 譜面入力
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手元のパート譜を、タッチ操作で書き写していくアプリです。 ■ 指の上下だけで音高が決まる 画面右下の音高パッドを上下になぞると音高が決まり、指を離すと確定します。 書き込む場所は譜面のカーソルが示し、なぞっている間はそこに下書きの音符が出ます。 指を離す前に音を確かめられるので、迷ったらそのまま動かし直せます。 ■ 押さえたまま、もう一方の指で音価を変える 音高を決める指を置いたまま、別の指で音の長さ・付点・臨時記号を切り替えられます。 臨時記号はダブルタップで固定でき、続けて使うときに押し直す必要がありません。 書いたあとの音符も、カーソルを合わせて音価を押せば長さを変えられます。 ■ 移調楽器はパート譜どおりに書ける クラリネットやアルトサックスのような移調楽器を選ぶと、譜面はパート譜と同じ記譜で表示・入力できます。 保存されるデータと再生音は実音なので、あとで他のパートと合わせても音が食い違いません。 ■ 曲の途中で拍子・調号・テンポが変わっても書ける 小節を選んで小節設定を開けば、その小節から拍子・調号・テンポ・練習番号を変更できます。 小節の追加・削除も同じ画面から行えます。 ■ 連符は3連・5連・6連・7連 選んでいる音価がそのまま連符の占める長さになります。4分音符なら1拍3連、2分音符なら2拍3連。 枠を作ってから中身の音符を書き込みます。 ■ 書いた譜面はファイルとして持ち出せる 曲は端末内に譜面ファイル(.musil)として保存され、「ファイル」アプリからも見えます。 共有シートで他のアプリへ渡せます。同じ作者の「プログラマブルメトロノーム」に読み込めば、 書き写した譜面をそのままテンポの設計に使えます。 ■ 書きかけを失わない 編集中の内容は自動的に退避され、アプリを閉じても次の起動で続きから再開できます。 すべて端末内で動作し、ネットワーク通信は行いません。広告もアカウント登録もありません。
Screenshots
Verdict
The clearest difference is price: Compose Studio 譜面入力 at Free against Keys Trainer's $2.99. Compose Studio 譜面入力 also leads on update cadence (monthly vs every 9 months). Keys Trainer's advantage is iOS requirement (12.0 vs 16.0). On 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
Compose Studio 譜面入力 is free to download; Keys Trainer costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Keys Trainer ships an update every 9 months, Compose Studio 譜面入力 monthly. The most recent releases landed on October 22, 2026 and October 20, 2026 respectively.
| Parameter | Keys Trainer | Compose Studio 譜面入力 |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 9 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 30 MB | 21 MB |
| Age rating | 4+ | 4+ |
| Developer | Plearn LLC | Naoki Chiba |
In-app purchases
Keys Trainer
No in-app purchases
Compose Studio 譜面入力
No in-app purchases
Questions
Is Keys Trainer free?
Is Compose Studio 譜面入力 free?
Do Keys Trainer or Compose Studio 譜面入力 have ads?
Which is updated more often, Keys Trainer or Compose Studio 譜面入力?
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