Calculi
A Smarter Scientific Calculator
Calculi is a smart scientific calculator that is simple and easy to use, but with advanced features for power users. Whether you are trying to balance your checkbook or taking an advanced math class, Calculi will help you with all of your calculating needs.
Traveling abroad? Not sure how much your lunch costs? Calculi has you covered with support for over 30 different currencies around the globe (data is updated daily from the European Central Bank). A Calculi Pro subscription is required for this feature.
You can easily convert any of your calculations to a different unit across 17 categories such as length, area, and volume. Unit conversions are saved to your calculation history for easy review. A Calculi Pro subscription is required for this feature.
Power users will enjoy multitasking and multi-window support. Keyboard shortcuts can also be used with an external keyboard.
Whether you need some quick arithmetic or need to calculate a tip, Calculi for watchOS will have you covered.
Scaled up for the big screen, Calculi for tvOS comes with all scientific functions and a calculation history.
From large to small expressions, Calculi can evaluate it.
Pair an external mouse to increase your productivity.
Pair an external keyboard to make use of shortcuts for common actions.
All calculations are saved and answers can be reused again.
Mathematical and scientific constants can be used in expressions.
Will you go to the dark side?
Helpful alerts are displayed when a mistake in your expression is detected.
Make the icon your own!
Do not like orange? Change it to your favorite color.
Common mathematical topics are included for reference.
Use Calculi in split view or slide over on iPadOS.
Adjust font sizes, sounds and haptics.
Share calculations simply by dragging them to another app.
You can easily convert between unit across 17 different categories.
Traveling internationally? Calculi can convert between over 30 currencies.
Calculi takes advantage of the latest versions of iOS, iPadOS, watchOS, and tvOS.