- Changed UI. - Added a feature to copy and paste the content of questions and answers. - Added a feature to move memories to another book. - Renamed “Keyword” to “Tag”. - Made other minor improvements. - Improved app stability.

- The keyword screen now supports the display of non-common keywords and the standardization of them. - Fixed a bug that marking a memory unintentionally hides a specific memory. - Refined the appearance and features a little. - Fixed some minor bugs.

- Changed the supported OS to 14.0 or later. - Changed the UI. - Added a feature to take handwritten notes on a white canvas. - Introduced reward advertising. - Refined the appearance and features a little. - Fixed some minor bugs.

- Added a new item to the selectable memory shapes. - Changed the keyword button. - A badge is attached to the keyword button to display the number of keywords registered in a memory. - Changed the app icon. - Adjusted when to reload ads. - Fixed some minor bugs. - Refined the appearance and features a little.

- Supported iOS 15 and iPadOS 15. - Refined the appearance and features a little.

- Fixed an issue that could not switch between questions and answers screens in some versions of iOS.

- Supported iOS 14 and iPadOS 14.

- Fixed a bug that caused the app to quit unexpectedly when text inserted into an image is edited on iOS 13 or later. - Fixed a bug that caused the app to quit unexpectedly when a memory is deleted.

- Supported iOS 13. - Refined the appearance and features a little.

- Improved the book screen.

- Corresponded to The General Data Protection Regulation. - Added some gesture features. - Added a feature to customize the size and thickness of book titles. - Brushed up on various other features. - Fixed a bug that a pasted image could not saved. - Fixed a bug that Q/A button and txt button do not respond when tapping the Q/A button after voice input of letters. - Fixed a bug that the screen displaying the progress status of a task may continue to be displayed when selecting memories to be added to a book. - Fixed other minor bugs.

- Fixed a bug that memories and books are not displayed as intended in some iPhone models.

- Fixed a bug that the app may be terminated when tapping on the Privacy Policy cell on the Settings screen. - Fixed a bug that the screen displaying the progress status of an ongoing task continues to be displayed after selecting one or more memories displayed in a book and changing keywords. - Fixed a bug that some screens may not be displayed as intended in an environment less than iOS 11. - Fixed minor bugs.

- Renewed image editing feature. - Made minor improvements in UI.

- Added memory shuffle feature. - Improved the operability of the image clipping frame. - Made minor changes of UI. - Added a link to the privacy policy. - Fixed a bug that the memories in the normal books may be displayed in an unintended order. - Fixed a bug that the check mark of the memories may not disappear. - Fixed a bug that each book is displayed in an unintended arrangement on the Books tab.