Landscape orientation is now available. Dark appearance is now available. Added app-specific dark mode options.

App size reduction

-The color of the status bar has been changed. -The "Copy to Clipboard" screen has been improved.

-Added the ability for "Open RFC 6890 in Safari". -Added "Network address only, no label" option to "Contents of copy" setting.

User interface improved. The app name has been changed.

The "+" and "-" buttons for increasing / decreasing the prefix have been added. The app name has been changed.

-Keypad design changes. -UI improved. -The function that shows information based on RFC 5735 for entered IP address has been replaced to the function that shows information based on RFC 6890. -The design and location of the button to show information of the 31 bit prefix has been changed. two other tips functions have been removed.

UI is updated for iOS 10.2.

UI of setting is improved. UI of app information is improved.

=Ver 2.3= 4-inch display support,some improvements etc. =Ver 2.3.1= The minor display problem* is fixed. *The keypad shows inappropriate IP address string for just a moment in some case

4-inch display is supported. UI is improved. One of two layouts can be chosen. It is changed by a button that has two triangle . Done button on the keypad is enabled even if "/"(slash) is entered but prefix value is not entered. App information button is added on setting view. App information view has links to related App.(Subnet Gauge,Subnet mask wheel, Subnet KeiSandor Free) The slider handling bug (the prefix is decreased when slider is tapped) is fixed. Tips handling bug (unnecessary tips are shown in rare cases if IP address is not entered) is fixed.

The App name is changed to "Subnet KeiSandor". Improves message about entering prefix on keypad which is shown for longer prefix than 31 bits. Toggles the prefix switch on keypad by tap on prefix label.

Adds history function. Calculation results can be copied to clipboard from a history. A previous entered value can be re-entered from a history.

Improves GUI. A 31 bit prefix support. Classless addressing support. Makes picker's items endless. Adds class indicator on keypad. Adds "copy to clipboard" function. Fits slider width for each class.

A function to show default mask and range of address of the class is added. A function to show range of address of special use is added. fix bug (keyboard is shown inappropriately when you tap binary string on binary view)