片手電卓 - 右手・左手モードで片手計算できる電卓

＊＊＊"I wish there was a calculator app that I could use with one hand!!!" ＊＊＊
This "one-handed calculator" will answer that wish!


The one-handed calculator provides an intuitive operating feel with simple calculator functions. It has a simple screen design that everyone has seen at least once.

From simple arithmetic operations to difficult calculations such as operations involving positive and negative values. When using negative numbers in calculations, it uses parentheses to prevent miscalculations.

This one-handed calculator allows you to change the dominant hand (two-handed or one-handed) setting from the settings screen, so you can move the buttons to the left or right in one-handed mode. This allows you to reach buttons that you previously couldn't reach with one hand.

One-handed calculators have number and arithmetic buttons on the left and right sides, making it easier to press the buttons with one hand.

***The great thing about one-handed calculators***
・Achieve a comfortable operation experience without advertisements!
・Anyone can use it easily without any instructions on how to use it with a simple calculator screen!
- By using one-handed mode, even people with small hands can use the calculator with one hand!
・Of course, it can also be operated in normal two-handed mode!
- Compatible with not only right-handed people but also left-handed people, so everyone can use one-handed mode!
-You can choose the theme color of the app, so you can use it with your favorite calculator!
- Memorizes calculation results and one-handed mode, so you can use the settings even if you restart the app! !
・Precision calculator that also supports calculations including decimal points!
- Large digits are separated by commas to make them easier to read!
- Prevent miscalculations by using parentheses for formulas that include negative numbers!
- Design suitable for all ages and barrier-free screen design!



"My hands are small and I can't reach the buttons with one hand."
“I want to calculate while taking notes, but it’s a pain to have to change my smartphone.”
↑A one-handed calculator can solve all of this.


With conventional calculators, there were some buttons that were impossible to reach when operating the device with one hand, and the user was unable to use both hands while taking notes.

With this one-handed calculator, there are no buttons you can't reach. Experience easy calculations in one-handed mode, whether you're right-handed or left-handed! !

If you would like to change the color of the one-handed calculator, you can select a theme color for the one-handed calculator by tapping Change theme color from the settings screen.

For those who want to use the calculator with both hands, there is a two-handed mode, and for those who want to use it with one hand, there is a one-handed mode! !