Developer description

Did you just say a calculator is a calculator is a calculator?

You should take a look at Calcuta.

I designed Calcuta because I was tired of clunky old-fashioned calculator interfaces, numeric keypads from the 1960s, and software that didn't work with you.

The decades old numeric keypad is replaced by a stunning, elegant, minimal radial keypad. Why radial? In Bell Laboratories old research on keyboard ergonomics, the radial dial scored high on speed of use and low errors.

Calcuta's intuitive, thoughtful interface, makes extensive use of gestures to address simple frustrations everyone has had with calculators.

You think you made a mistake; you're not sure if you typed a certain number. Old solution: retype. Calcuta solution: wipe the screen aside and edit any part of your calculation, numbers and operators. Even delete lines with a left swipe.

You're calculating when the baby cries, or phone rings. When you come back, you're not sure where you are. Calcuta lights up the keyboard like a Christmas tree as you type, and gives you a secondary display that shows you what you've typed.

And so many M's — With M, M+, M–, MC, MR, even MS? No more. There's a single M in Calcuta, it lights up on or off. You move numbers in and out of it with your fingertips. A single tap adds, two taps subtract. You can even multiply and divide.

To clear memory — why, just wipe it with your finger.

And finally, you can email your entire calculation. Once you have every detail of your calc right, you can send it out it as a spreadsheet-friendly table with a single click.

Last updated 3 Jul 2015