Ver 8.0.0 - Renamed partitions to categories. - Added subcategories. - Added a new layout for the add/edit item screen. - Added a data transfer feature. - Fixed an issue where exports in .txt and .csv formats could fail in some cases. - Starting with Ver 8.0.0, the subscription price for new users will be revised due to the addition of new features. Existing price groups will remain unchanged. - Made minor fixes and improvements.

Ver 7.0.4 - Fixed an issue where the app crashed when restoring purchases. - Made minor fixes and improvements.

Ver 7.0.3 - Fixed an issue where edited item information was not always reflected. - Made minor fixes and improvements.

Ver 7.0.2 - Fixed an issue related to the display of the item list. - Made minor fixes and improvements.

Ver 7.0.1 - Fixed an issue where the app could become unresponsive after changing app settings or deleting data.

Ver 7.0.0 - Added an announcements feature. You can access it from the home screen. - Added a template feature. - Added Spotlight search support for the iOS version. - Added an online manual. - You can now tap images to view them in greater detail. - Added features for subscription users. - Enhanced the item list screen to allow more detailed item information to be viewed. You can also switch back to the previous display style. - Adjusted the processing of the dictionary-style layout. - Improved performance in some parts of the app.

Ver 6.1.1 - Fixed an issue in the export function where partitions were ordered by addition sequence instead of array order.

Ver 6.1.0 - Set a character limit for partitions to prevent layout issues. - Applied color settings to screens that were previously unsupported. - Adjusted the UI of the settings screen. - Adjusted the UI of the subscription purchase screen. - Added features for subscription users: - Added the ability to add multiple items at once. - Added CSV import functionality. - Made minor fixes and improvements.

Ver 6.0.0 - Added the ability to view the app manual and sample works from the home screen. - Added the ability to display item tags in the item list view. - Added the ability to retain the open/closed state of partitions in the item list view. - Added the ability to reorder tags in the add/edit item screen." - Added features for subscription users: - Added cross-book search functionality, allowing searches across all books. - Added the ability to move or copy items to other books or partitions. - Improved the text formatting UI in the item add/edit screen. - Made minor fixes and improvements.

Ver 5.2.0 - Added the ability to select items by tapping in the dictionary-style layout. - Added the ability to view item details in the dictionary-style layout. - Added the ability to edit item information in the dictionary-style layout. - Added extensive new explanations on how to use the app. - Made minor fixes and improvements.

Ver 5.1.2 - Fixed an issue where the item list and dictionary-style layout would not display correctly when a new item was added.

Ver 5.1.1 - Fixed the issue about related items.

Ver 5.1.0 - Added consider-partitions mode in the dictionary-style layout. - Added a feature to save and share dictionary pages and items as images. - Fixed an issue where a different item might be displayed when adding related items. - Made minor fixes and improvements.

Ver 5.0.2 - Improved the dictionary-style layout to make features such as search and index more intuitive. - Fixed an issue in the dictionary-style layout where special characters were incorrectly displayed in the search function.

Ver 5.0.1 - Fixed issues related to ad processing. - Made minor fixes and improvements.

Ver 5.0.0 - Added features for subscription users. - Added dictionary data exported. - Added thumbnails display feature on the item list screen. - Improved the dictionary-style layout. - Made minor fixes and improvements.

Ver 4.1.0 - In the free version, the number of additional rights earned through ad rewards has been increased to 5. - Added a feature to copy item data to the clipboard in the item detail screen. - Fixed an issue where the underline was not properly displayed in the item detail screen when the item name was too long. - Made adjustments to the display of banner ads.

Ver 4.0.4 - Changed the behavior when adding a book to navigate to the details screen of the added book instead of returning to the home screen. - Fixed an issue where the tutorial did not display correctly.

Ver 4.0.3 - Updated the list view to retain the scroll position.

Ver 4.0.2 - Fixed an issue where features intended for subscription users were accessible in the free version. - Fixed an issue in the free version where the add item button remained visible during the process of reordering items with the same reading.

Ver 4.0.1 - Fixed an issue where the iCloud backup feature did not work properly.

Ver4.0.0 - Added support for adding items with identical Ruby/Subtitle. - Added items folding by partition feature in list view. - Added icons to each item in the side menu on the home screen (Bookshelf). - Added features for subscription users: - Added dictionary-style layouts (vertical and horizontal). - Added the ability to customize the color of individual items in the traditional layout (list view). - Added the ability to add icons to items in the traditional layout (list view). - Improved the process for adding partitions for better clarity. - Fixed an issue where images added to items were not immediately reflected. - Made minor improvements.

Ver 3.1.0 - Added partition display in the related items addition screen. - Added explanations to 'How to Use'. - Fixed an issue where the word 'Settings' was displayed too small in the settings menu. - Fixed an issue where deleting an image while editing an item would remove the image even if changes were not saved. - Made minor improvements.

Ver 3.0.0 - Added features for subscription users. - Added the ability to format descriptions. You can make text bold, underline, and change font size and color. - Added the ability to add images to items. You can add up to four images per item. - Fixed an issue where partitions were not displayed correctly when changing partitions from the item list with a certain number of partitions. - Fixed an issue where the search function did not work correctly. - Made minor improvements.

Ver 2.2.0 - Removed the settings screen and made it possible to access settings from the sidebar on the home screen. - A feature to rate the app has been added to the settings. - Added the ability to swipe left or right on the item details screen to navigate to the previous or next item.