Classicalc is a unique, the most classy calculator app on the App Store. It's designed to be beautiful and simple, but also… to sound amazing! Each color theme has its own, actual Grand Piano major scale! It's Chopin-awesome! Underneath it beautiful simplicity, there's some serious technology powering Classicalc:

## Instant Calculation calculates the formula as you type, so you never have to use the equals sign (=). We spare you one unnecessary tap at a time.

## Classicalc calculates result using mathematical order of operators (× ÷ + -) so if you would like to add 1 to 1 and then multiply the result by 2, you should write (1 + 1) × 2 instead of 1 + 1 × 2

## You can start your calculations on your iPhone, then Continue on your Apple Watch, and the other way around.

## Your most recent equation is always saved, even if you shut the app. When you run it again, The formula is instantly there.

## 14 great-looking backgrounds with related actual Grand Piano major scales. Change colors and major scales on iPhone app (by pressing little diamond in top-left corner) to change colors on Apple Watch.

## In case the numbers bore you, you can always play a song. It's Chopin-awesome!

*** Tips ***
- long press "backspace" button to clear whole expression
- long press the result to copy it to the system clipboard

Ratings and Reviews

JPinan ,


Makes cipherin' more fun. Took awhile to figure out how to clear.

Pepsiluv ,

Number location

Thanks for changing the number positions to resemble a calculator. I am surprised though that it took a year to make the change.

Developer Response ,

Yes, you are right I should change that faster (we were working on another cool apps: Many thanks for updating the review!

hijdsdhhjicfweihu ,


i thought i could make funky town my making it but it doesnt allow you.

Developer Response ,

Only 1 star? Funky town is quite complicated song and please remember the main purpose of this app is to do simple calculations. It's not digital piano.

App Privacy

The developer, Lukasz Kowalski, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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