Calculator board - Simple and useful, calculator built-in keyboard - app for iPhone and iPad

Calculated without switching the app!

Calculator board to a little convenient day-to-day life
Is a custom keyboard.
It is possible to quickly compute while out the keyboard,
Does not need to be changed to other calculator app.

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FEATURES OF THIS APP
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· One hand even easy-to-use layout
· Display of formula
· Convenient output format
· The automatic response to a variety of separated display format
· The change can be tax rate

=== Settings ===
To add a keyboard, you must have the following procedure.
Settings -> General -> Keyboard -> Keyboard -> Add New Keyboard -> Calculator board

=== About full access ===
After adding keyboard, Calculator board -> Allow Full Access
After authorization of full access, allows setting of tax rates.

If you allow full access, transmission and collection of personal information will not be performed.