Piano Chords Master vs 音感サプリAs
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Piano Chords Master
This app allows users to create and play songs by setting chords for each bar on a virtual keyboard. It supports various chord types and input methods, including MIDI, and offers transposition features for practice. Unlock all chord patterns and sounds with an in-app purchase.
- Set chords per bar
- Chord tone and sound confirmation
- Identify chords by pressing keys
- Full song playback with BPM
- MIDI keyboard support
- Chord transposition
- Save and load songs
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This app supports chord piano playing. You can set the chord for each bar and check the chord tone and chord sounds on the keyboard. You can also play a song (all bars). We hope this app will help you practice songs that are composed of chords, such as pop music and jazz. ================================ Ver.3 New features: - Applying the concepts of "Bar" and "Song" (all bars). - "Bar" can contain a single chord or silence (N.C.). - "Song" can have any number of bars (previous version: 16). - Supports both portrait and landscape orientations. *If you would like to use the specifications of the previous version, please use 'Piano Chords Master [Classic]'. ================================ [ Main Features ] - Set a chord per bar (including silence (N.C.)) - Add bar editing features (Single: add, delete, paste; Range: cut, copy, delete multiple bars) - Display the chord tone of the selected chord (root, triad, 7th, tension, on-base) on the keyboard - Confirm the sound of the selected chord - Identify the chord when you press a key and display the chord name - Playback of song (all bars) (specifies BPM) - Save/load song (all bars) [ Convenient Features ] A variety of chord input methods: - Set from the key/chord selection view - Set from the on-screen keyboard - Set from a MIDI-compatible keyboard (Core MIDI compatible) Convenient chord registration method: - Simply select a common chord progression (e.g., 1-6-2-5) and add it to a bar. - Select from presets (e.g., blues, jazz standards) and register them as templates for new songs. Edit chords: - Transposition (change the key of the entire bar) Keyboard UI: - 6-octave keyboard (C2 - C7) - Adjustable keyboard width MIDI features: - Supports MIDI message (note on/off) transmission - Supports Bluetooth MIDI connection * To enter and display all chord patterns, including tensions (b9, #9, 11, #11, b13, 13), In-app purchase is required. * There are 28 sounds in total (9 are available by default). To use them all, In-app purchase is required.) [ Chord type ] M, 7, 7(b5), 7(#5), 6, 6 9, 9, add9, M7, M9, M7(b5), M7(#5), m, m6, m6 9, m(#5), m add9, m7, mM7, m7(b5), m7(#5), m9, mM9, aug, dim, dim7, sus4, 7sus4, 9sus4, M7sus4, M9sus4, sus2, 7sus2, M7sus2 (To use below, you need In-App Purchase.) 7(b9), 7(#9), 7(#11), 7(b13), 7(13), 7(b9 #11), 7(b9 b13), 7(b9 13), 9(#11), 9(b13), 9(13), 7(#9 #11), 7(#9 b13), 7(#9 13), M7(#11), M9(#11), M7(13), M9(13), m7(11), m7(13), m9(11), m7(b5 11), m7(b5 13)
音感サプリAs
This app helps wind instrument players improve their tuning and ear training. It offers tutorials, a unique brain tuner with instrument-specific reference tones, a 13-note library, and exercises to enhance pitch and rhythm accuracy.
- Instrument-specific reference tones
- Pitch and rhythm accuracy exercises
- 13-note scale library
- Recording for self-assessment
- Comprehensive tutorials
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赤渋楽譜出版より 「実はチューニングが苦手な管楽器奏者のためのアプリ新登場!」 管楽器業界で様々な企画を発表している赤渋楽譜出版から、 待望のチューニングアプリが登場! 従来のチューナーにはない新しい機能が、 皆さまの音楽生活をサポートします。 アプリの説明 「管楽器にとってチューニングは大切ですが、実は多くの学生さんが疑問や悩みを抱えています。このアプリは認知科学の立場から、音感の意味を整理し、訓練するために開発された、世界で最初のアプリケーションです。」 機能詳細(アプリ内容) 1.チュートリアル アプリの操作方法と、チューニングの仕組みが記されている充実のチュートリアル。 2.脳内チューナー チューナーの基準の音は、楽器の音色を使用。楽器特有の基準音が選択可能(それぞれ3つ)です。録音機能を使って、自分の音程を客観的にチェック。チュートリアルを元に、チューニングが音楽に直結する仕組みが理解できます。 3.13音ライブラリー 管楽器は運指が正しくても、正しい音が出るとは限りません。ここでは主要な1オクターブ13音を、ピアノや電子楽器を使う事なく、その場で確かめる事ができます。 4.単音聴音 1~3を通じ、自分の音感を確認出来ます。発音された音に続いて発音し、音感を高めて行きましょう。 5.リズムチェック リズムと音感は、どちらも注意点は同じです。ここでは、メトロノーム音と自分の演奏を同時に録音し、リズムのズレをチェックできます。 企画構成 解説 河合和貴 制作・著作 赤渋楽譜出版 販売元: エバーシステム株式会社
Screenshots
Verdict
The clearest difference is review sentiment: Piano Chords Master at 67% against 音感サプリAs's 0%. Piano Chords Master also leads on price (Free vs $3.99) and update cadence (every 6 weeks vs every 39 months). 音感サプリAs's advantage is in-app purchases (none vs 3) and ads (none vs shown). On 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
Piano Chords Master is free to download; 音感サプリAs costs $3.99 up front. Piano Chords Master sells 3 one-off in-app purchases. 音感サプリAs asks for nothing beyond the download.
Piano Chords Master ships an update every 6 weeks, 音感サプリAs every 39 months. The most recent releases landed on November 2, 2026 and November 1, 2026 respectively.
| Parameter | Piano Chords Master | 音感サプリAs |
|---|---|---|
| Price | Free — better | $3.99 |
| Rating | 4.5 (66 ratings) — better | — |
| Positive reviews | 66.7% of reviews — better | 0.0% of reviews |
| Number of ratings | 66 — better | — |
| Update frequency | Every 6 weeks — better | Every 39 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases — better | Paid |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 11 MB | 19 MB |
| Age rating | 4+ | 4+ |
| Developer | Loop-Sessions.LLC. | Eversystem Inc. |
Customer experience
Piano Chords Master
音感サプリAs
In-app purchases
Piano Chords Master
- All sounds are available$0.99
- All chords are available$1.99
- Always remove banner ads.$7.99
音感サプリAs
No in-app purchases









