- Made minor feature improvements - Made minor design adjustments - Fixed minor bugs

- Introduced a stamina system and expanded the features available in the Free Plan - Changed stages to unlock progressively (also added an option in Settings to unlock all stages at once) - Added and improved minor features - Fixed minor bugs

- Added minor features - Improved app performance - Made minor design improvements - Fixed minor bugs

- Added small features to make the app more comfortable to use. - Improved minor features. - Made design adjustments. - Fixed minor issues.

- Improved app performance. - Made design adjustments. - Fixed minor bugs.

- Made design adjustments. - Added minor features. - Improved app performance. - Fixed minor bugs.

- Improved the result sharing feature. - Added minor features. - Improved minor features. - Improved app performance. - Fixed minor bugs.

- Added minor features. - Adjusted the design. - Fixed minor bugs.

- Made design adjustments. - Added minor features. - Fixed minor bugs.

- Improved time display accuracy, now showing times to two decimal places - Added minor features to make the app more convenient and enjoyable to use - Reduced the app size - Improved app performance - Fixed minor bugs

- Added small improvements to make the app more comfortable to use. - Improved app performance. - Fixed minor bugs.

- Added a feature to reset training records. - Updated the stage structure. - Made design adjustments. - Added and adjusted small features. - Fixed bugs.

- minor design adjustments

・細かなデザイン調整

- Added small feature improvements. - Made design adjustments. - Updated text. - Fixed issues on macOS.

- Improved keyboard audio so previously played notes no longer cut off when keys are pressed rapidly in succession. - Improved app performance. - Made minor design adjustments.

- Added a hint feature that shows which direction the correct note is when you tap the wrong note. - Made minor design adjustments. - Fixed minor bugs.

- Added a “Share Results” button to the detailed results screen, making it easy to post to social media with a screenshot of your results screen. - Made minor design adjustments. - Made small feature improvements. - Updated what’s available in the free version. - Fixed minor bugs.

- Made minor design adjustments. - Improved performance.

- Revamped the stage structure (more granular stages + new certification exams). - Added new stages and features that include accidentals. - Removed in-app ads. - Added cross-device data sync via iCloud. - Updated the theme color lineup. - Fixed minor bugs.

- Added yearly plan. - Added small quality-of-life improvements for a smoother experience. - Made minor design adjustments. - Improved performance. - Fixed minor bugs.

- Added support for portrait orientation and windowed multitasking on iPad. - Added small quality-of-life improvements for a smoother experience. - Improved performance. - Fixed minor bugs.

- Fixed minor bugs.

- Added small features to make the app more comfortable to use. - Updated what’s available in the free version. - Improved performance.

- Updated what’s available in the free version. - Improved performance.