Keys Trainer
Master Key Signatures & Scales
$2.99 · Designed for iPad. Not verified for macOS.
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.
Ratings & Reviews
Turn on Diatonic Modes in Settings to practice the seven diatonic modes (Ionian, Dorian, Phrygian, Lydian, Mixolydian, Aeolian, Locrian) together with major and minor.
The developer, Plearn LLC, 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.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Plearn LLC
- Size
- 31 MB
- Category
- Music
- Compatibility
Requires iOS 12.0 or later.
- iPhone
Requires iOS 12.0 or later. - iPad
Requires iPadOS 12.0 or later. - iPod touch
Requires iOS 12.0 or later. - Mac
Requires macOS 11.0 or later and a Mac with Apple M1 chip or later.
- iPhone
- Languages
English and 43 more
- English, Arabic, Bengali, Catalan, Croatian, Czech, Danish, Dutch, Finnish, French, German, Greek, Gujarati, Hebrew, Hindi, Hungarian, Indonesian, Italian, Japanese, Kannada, Korean, Malay, Malayalam, Marathi, Norwegian Bokmål, Oriya, Polish, Portuguese, Punjabi, Romanian, Russian, Simplified Chinese, Slovak, Slovenian, Spanish, Swedish, Tamil, Telugu, Thai, Traditional Chinese, Turkish, Ukrainian, Urdu, Vietnamese
- Age Rating
4+
- 4+
- Copyright
- © 2026 Plearn LLC
