1. To accommodate different device screen sizes, a scaling switch has been added to adjust the calculator UI. 2. The Widget Calculator has been updated, allowing users to change the button color directly on the Settings page without needing to re-add or remove the widget. 3. Users can now choose the number of decimal places to retain for calculation results in the Widget Calculator and toggle the display of thousand-digit separator. 4. Fixed some bugs. Since version 2.2.0 includes many updates to the Widget calculator, if you are upgrading from version 2.1.0 or an earlier version, please remove the previously added Widget and add it again.

1. Compatible with iOS 18 & iPadOS 18. 2. Added new converter features - Angle, Fuel Consumption and Flow Rate. 3. Fixed some minor bugs.

1. Brings a brand new unit converter feature. 2. Fixed some logic bugs and optimised the code. 3. New color themes - Fruit green & Egg yellow. 4. Fixed the bug that the button color of widget calculator would be changed when switching the system color scheme.

This update has brought a purple color theme to the main interface and Widgets interface.

This update improved the user interface, added selection feedback to the settings page and updated the website link for homepage and privacy policy.

This update improves the user interface and adds symbol animation effects to the settings page.

1. Added sound feedback to the buttons: users can choose to turn on/off the sound feedback in the settings page and can choose between two sound feedback types. 2. Added a choice of four levels (soft, light, medium and heavy) to the haptic of the buttons. 3. Improvements to the user interface.

1. The following features have been added: - Users can now perform calculations using a selection of retained decimal places. (The number of decimal places is limited to 0 to 15). - The maximum number of digits that the user can enter is now changed from 12 to 15. - A switch to disable screen lock has been set so that users can choose to keep the screen always lit when using this application to avoid the need to unlock the device repeatedly when performing long calculations. - Added support for external keyboards. Users can now not only tap the screen to operate the app, but also use keyboard shortcuts to perform calculations directly. Support for external wired or wireless keyboards, either for iPhone or iPad, or for Apple Silicon's Mac. 2. A number of bugs have been fixed, including but not limited to: a bug that prevented negative numbers from becoming percents has been fixed; a bug that caused a distortion in the precision of calculations when using larger values with decimals in the calculations has been fixed. 3. Improved the design of some UI, more user-friendly.