Calculators can be hard to use. Calculi plans to change all that.

Calculi is a smart 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, this app will help you with all of your calculating needs.

Calculi doesn’t just add two numbers together, but can solve complex expressions using the order of operations. The multi-line display allows for small or large expressions. So go ahead and calculate anything and everything! Press the 2nd button to reveal more scientific functions.

Calculi adapts for all of the latest iOS devices. Even better, multitasking on the iPad is supported in all orientations. Multi-window support is enabled on iPadOS so you can have Calculi wherever you need it. For power users, light and dark modes are available.

Gestures are fun. So why not?
- Long press the delete button to clear the display.
- Long press the equals button to use the previous result.

Don’t be selfish. This history tape can be shared either as a single thread or the entire tape using numerous methods such as email, messaging, or print.

Common constants from both mathematical and scientific fields (astronomical, chemical, electromagnetic, etc.) are included for use in calculations.

Pair an external keyboard or trackpad to gain access to powerful shortcuts and full cursor support. You can hold down the command key on your keyboard to view all the available shortcuts.

Finally, if you enjoyed Calculi, please take some time to leave a review. Feedback is always appreciated for future updates.

This yearly subscription grants you access to the following:
- App Themes
- Colorful custom icons
- Dark mode set as the default

Subscription Details
– Payment will be charged to iTunes Account at confirmation of purchase
– Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period
– Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal
– Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user’s Account Settings after purchase

Terms of Use:
Privacy Policy:

What’s New

Version 3.5.1

This small update includes the following:
- Improvements to the tip jar
- Fixed an issue on watchOS
- New history animations on iPadOS
- Updated alert for left-handed mode on iPadOS
- Delete gesture added to the iMessage app

Ratings and Reviews

4.3 out of 5
4 Ratings

4 Ratings

filsmartins ,

Great calculator

Probably the best calculator app for the iPad. Well designed, no ads.
Im rating it 4* because it only lacks a Notification Center widget. That would be perfect.

I’ll gladly change my rating if it gets added.

App Privacy

The developer, Michael Natole, Jr., 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 Linked to You

The following data may be collected but it is not linked to your identity:

  • Location
  • User Content
  • Usage Data
  • Diagnostics

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


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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