Comparison

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.

Head to head
About

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.

Highlights
  • 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
Read full description

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)

About

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.

Highlights
  • Instrument-specific reference tones
  • Pitch and rhythm accuracy exercises
  • 13-note scale library
  • Recording for self-assessment
  • Comprehensive tutorials
Features
Read full description

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

Piano Chords Master4 screens
音感サプリAs4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

UpkeepUpdate frequency

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.

Scorecard6 real differences · 4 level
Piano Chords Master versus 音感サプリAs: the parameters behind the verdict, then further details
ParameterPiano Chords Master音感サプリAs
PriceFree — better$3.99
Rating4.5 (66 ratings) — better—
Positive reviews66.7% of reviews — better0.0% of reviews
Number of ratings66 — better—
Update frequencyEvery 6 weeks — betterEvery 39 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.015.0 — better
Further details — not scored
Size11 MB19 MB
Age rating4+4+
DeveloperLoop-Sessions.LLC.Eversystem Inc.

Customer experience

Piano Chords Master

All ratings66 ratings
Positive87.9%
Neutral4.5%
Negative7.6%
Written reviews24 reviews
Positive66.7%
Neutral8.3%
Negative25.0%

音感サプリAs

Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

3 purchases

Piano Chords Master

One-time3
  • All sounds are available$0.99
  • All chords are available$1.99
  • Always remove banner ads.$7.99
None

音感サプリAs

No in-app purchases

Questions

Is Piano Chords Master free?
Piano Chords Master is free to download, with in-app purchases available.
Is 音感サプリAs free?
音感サプリAs costs $3.99, with no in-app purchases.
Do Piano Chords Master or 音感サプリAs have ads?
Piano Chords Master shows ads; 音感サプリAs does not.
Which is updated more often, Piano Chords Master or 音感サプリAs?
Piano Chords Master ships an update every 6 weeks, and 音感サプリAs every 39 months. Most recently, Piano Chords Master was updated on November 2, 2026 and 音感サプリAs on November 1, 2026.

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