Supported Features
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VoiceOver
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Larger Text
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Dark Interface
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Differentiate Without Color Alone
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Sufficient Contrast
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Reduced Motion
Chord Reading Trainer
Understand Chords Better!
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
“Want an easy way to deepen your understanding of chords...?”
This app is for you.
【App Features】
- Train chords while having fun like a game!
- Simple controls—just tap the piano keys
- Supports MIDI keyboards
- Focus on selected chord types and train step by step
- Supports a variety of musical keys *
- Customize your training in Custom Mode *
- Supports Dark Mode
* A Premium purchase is required to use this feature.
Please see the following for the terms and other information regarding subscriptions.
- Privacy Policy: https://dualukegg.wixsite.com/my-app-gallery-l
- Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
- Added minor features to make the app more comfortable to use
- Adjusted the design
- Improved app performance
- Fixed minor bugs
The developer, Ruku Kobayashi, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
The developer indicated that this app supports the following accessibility features. Learn More
Information
- Seller
- Ruku Kobayashi
- Size
- 15.4 MB
- Category
- Education
- Compatibility
Requires iOS 26.0 or later.
- iPhone
Requires iOS 26.0 or later. - iPad
Requires iPadOS 26.0 or later. - Mac
Requires macOS 26.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 26.0 or later.
- iPhone
- Languages
English and 16 more
- English, Dutch, French, German, Indonesian, Italian, Japanese, Korean, Malay, Polish, Portuguese, Simplified Chinese, Spanish, Thai, Traditional Chinese, Turkish, Vietnamese
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Dinner Tip $5.99
- Coffee Tip $2.99
- Snack Tip $0.49
- Premium Plan (Monthly) $0.49
- Premium Plan (Yearly) $2.99
- Premium Plan (Lifetime) $4.99
- Copyright
- © 2026 Ruku Kobayashi