What's New

Improved to be compatible with the latest iPhones.

App Description

“Why is the size of Calculator each buttons same? “
“How order is the priority of Calculator button? “
“What type Calculator is designed ,According to this priority? “

From those point,I redesign Calculator.

Calculator is for Calculation.Not for inputting number.
Consequently, the most important button is NOT number buttons.
The most important button is 4 arithmetical operation buttons.
I design those 4 arithmetical operation button is bigger than 10 number buttons.

I put those 4 buttons around number buttons(relative position).
And if you incline your iPhone to the direction of top and bottom right and left
, you can input 4 arithmetical operation.

・Future function additional plan
Equal sign input by the gesture

iPhone Screenshots

(click to enlarge)

Slope Calc screenshot 1 Slope Calc screenshot 2 Slope Calc screenshot 3

App Changes

  • June 19, 2014 Initial release
  • January 06, 2015 Price increase: $0.99 -> $2.99
  • May 31, 2015 Price decrease: $2.99 -> $0.99
  • September 07, 2015 Price increase: $0.99 -> $2.99
  • November 26, 2015 Price decrease: $2.99 -> $0.99
  • December 30, 2015 Price increase: $0.99 -> $2.99
  • December 10, 2016 Price decrease: $2.99 -> $0.99
  • June 14, 2019 New version 1.3
  • June 14, 2019 Price increase: $0.99 -> $2.99
  • June 14, 2019 Price increase: $0.99 -> $2.99
  • June 15, 2019 Price increase: $0.99 -> $2.99
  • June 15, 2019 Price increase: $0.99 -> $2.99
  • June 15, 2019 Price increase: $0.99 -> $2.99
  • June 17, 2019 Price increase: $0.99 -> $2.99
  • June 20, 2019 Price decrease: $2.99 -> $0.99
  • September 16, 2023 New version 2.0

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