- Added minor features. - Made minor design refinements. - Improved performance.

- Updated the app icon. - Improved performance. - Added small features to improve your experience. - Fixed minor bugs.

- Improved so premium features work even when the device is offline - Performance improvements - Adjusted keywords for better Spotlight search results - Added support for iOS 26 - Fixed various minor issues

- Design adjustments - Minor bug fixes

- Expanded the range of features available for free (unlockable by watching video ads) - Improved the design - Added minor features to make the app more comfortable to use - Improved app performance - Fixed bugs

- Fixed an issue with note-name display.

- Expanded the range of features available to free users - Minor feature adjustments - Minor bug fixes

- Support for MIDI keyboards

- Improved app performance (reduced screen stutter) - Minor design refinements - Added support for Spanish, German, Korean, and Simplified Chinese - Other minor feature adjustments

- Added the ability to display missed notes on the results screen. - Added a feature to focus practice on the notes you got wrong. - Adjusted the design. - Added minor enhancements. - Fixed minor bugs.

- Resolved an audio issue.

- Added display of the selected stage on the result screen - Added a feature to view detailed results such as accuracy and clear time - Unlocked some theme colors for free - Improved an issue where noise occurred when tapping keys rapidly - Fixed a problem where some staff lines appeared thicker on certain devices - Improved so background audio (e.g., music) does not stop when the quiz starts - Improved the transition behavior to the result screen - Reduced the app’s overall file size - Made minor design adjustments - Added minor features and improvements

- Fixed minor bugs.

- Fixed an issue where the app crashes under certain conditions when clearing custom mode. - Fixed other minor bugs.

- Added the ability to toggle the display of marks linking the keyboard keys with corresponding musical notes on the sheet music. - Fixed an issue where notes outside the keyboard range could appear under certain conditions. - Fixed an issue where background audio playing on the device would stop unexpectedly when starting training, even if the keyboard sound was set to off.

- Added various features to enhance gameplay enjoyment - Improved design - Minor bug fixes

- Improved design - Added various features to enhance user enjoyment - Added features for a smoother gameplay experience - Minor bug fixes

- Added a certification exam stage to test your skills (partially free to access) - Added various features to enhance user enjoyment - Design improvements

- Added a feature to display note names on the keyboard - Design improvements - Minor bug fixes

- Changed the app icon - Added new theme colors - Added a feature that shows the correct keys after three consecutive mistakes - Added various features to improve the app experience - Added features to enhance gameplay enjoyment - Improved design - Fixed an issue where notes were displayed incorrectly in some keys with the bass clef - Other bug fixes

- Added keyboard sound - Improved design​ - Bug fixes

- Added a feature to record and view the number of correctly answered notes - Design adjustments - Bug fixes

- Added a custom mode - Added various features for a more comfortable experience - Improved design - Changed the range of features available for free - Fixed bugs

- Added a subscription plan - Adjustments to colors and layout

- Bug fixes - Addition and adjustment of minor features