Calculi: Scientific Calculator

Calculi: Scientific Calculator

Unit & Currency Conversion

App Report, Market and Ranking Data
category
price
Free (IAP)
Reviews
4.4 (355)
United States United States
Description
Unit & Currency Conversion
Calculators can be hard to use.  Calculi plans to change all that.

SIMPLE BUT POWERFUL
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.

CALCULATE ANYTHING
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.

UNIT CONVERSION
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.

CURRENCY CONVERSION
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.

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

DESIGNED WITH iOS 17 IN MIND
Calculi adapts to 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.  Interactive widgets are included for calculations on your home screen.

GESTURES
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 or expression
- Long press the display to copy, paste, or share
- Long press any calculation item to reuse the expression or result

GET SHARING
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.  There is also an iMessage app so you can easily send calculations.

CALCULATE ON YOUR WRIST
Calculi is also available on Apple Watch!  Besides a four-function calculator, you will also find a tip calculator and counter.

EXTERNAL KEYBOARD AND TRACKPAD SUPPORT
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.

CALCULI PRO
This yearly subscription grants you access to the following:
- Unit Conversions
- Currency Conversions
- App Themes
- Colorful custom icons
- No Ads

TIP JAR
If you enjoy using the app and want to support an independent app developer, please consider sending a tip.

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: https://www.calculiapp.com/terms.html
Privacy Policy: https://www.calculiapp.com/privacy-policy.html
Category Ranking
Not enough information to display the data.
Review Breakdown
Not enough information to display the data.
Screenshots
Reviews

WAY better than the stock iPhone calculator!

This calculator app blows the built in iPhone one OUT OF THE WATER!!! (iPhone 11). For me at least it’s better in many ways, one of the most important of which is the history screen including the functions of bringing past answers & expressions into your current operation. Also, despite it’s age the author regularly drops helpful updates. This is coming from someone who generally, highly prefers native apps over 3rd party ones.

THE BEST iPhone clac app!Sat, Mar 16, 2024
United StatesUnited States

Pop up’s

I really don’t need a pop up rating request every time I open the app

Nope474Thu, Jan 5, 2023
United StatesUnited States

Updated to add ads?

You updated the app to have ads? That’s so disappointing! I also don’t like the added clutter of keys I will never use in the iPad app which forces the number keys to be centered instead of on the left as one would expect. I would have to limit my use to slide over in landscape orientation to keep the normal calculator feel.

MB1742Sat, Dec 10, 2022
United StatesUnited States

Awesome app!

Using it all the time, very helpful calculator.

juliegirlmikeyboyFri, Oct 14, 2022
United StatesUnited States

Almost Perfect

This is dang near perfect: works with a keyboard! Works in Split Screen! No ads! Data not linked to your identity! History tape, keyboard shortcuts, shareable history… seriously, almost everything I want. There’s just one thing that makes it impossible for me to use: It doesn’t work in Slide Over. You can use the calculator itself in Slide Over, or you can view and share the history, but you can’t do both. Once you view the history, there’s no way to get back to the calculator in Slide Over, you must change to Split Screen, or close and re-open the app, that kind of thing. If this app ever gets Slide Over fixed, I will certainly download it again and definitely update my review. Until then, might as well delete it and keep using the calculator on my iPhone while working on the iPad. For what I’m looking for, this app is unusable. UPDATE: This app is working perfectly now! I love it! The developer fixed it in the latest update, and I can confirm that now it works in Slide Over. It went from being unusable to being exactly what I want. Seriously, if I had the talent to be able to develop apps, this is what I would make—it checks all the boxes for me. I don’t need scientific functions or anything fancy, but I do need a history tape. I really like the tape in this app, because each equation has it’s own “bubble” in the history tape window, which makes recognizing each one simple. I kind of can’t wait for my friends to ask me if I use a calculator app on my iPad, so I can recommend Calculi to them and tell them about all the reasons they’re going to love it, too.

Jess_BratSat, Jul 24, 2021
United StatesUnited States

Almost Perfect

This is dang near perfect: works with a keyboard! Works in Split Screen! No ads! Data not linked to your identity! History tape, keyboard shortcuts, shareable history… seriously, almost everything I want. There’s just one thing that makes it impossible for me to use: It doesn’t work in Slide Over. You can use the calculator itself in Slide Over, or you can view and share the history, but you can’t do both. Once you view the history, there’s no way to get back to the calculator in Slide Over, you must change to Split Screen, or close and re-open the app, that kind of thing. If this app ever gets Slide Over fixed, I will certainly download it again and definitely update my review. Until then, might as well delete it and keep using the calculator on my iPhone while working on the iPad. For what I’m looking for, this app is unusable.

Jess_BratFri, Jul 16, 2021
United StatesUnited States

Great ui desing

Great app and great design, loving it

¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶€£¥[Tue, May 18, 2021
United StatesUnited States
Download & Revenue
DOWNLOAD 205Apr 2024Worldwide
REVENUE$1Apr 2024Worldwide
download revenue
About
Bundle Id
com.naxcreations.Calculi
Min Os. Version
16.0
Release Date
Sat, Jul 30, 2011
Update Date
Mon, Feb 26, 2024
Content Rating
4+
Has IMessage
Yes
Support Watch
Yes
Support Siri
No
File Size
12.01MB
Has Game Center
No
Family Sharing
Yes
Support Passbook
No
Supported Languages
English
What's New
version
4.3
updated
2 months ago
- Support for iOS 17, iPadOS 17, and watchOS 10
- All new Apple Watch app
- Option to speak actions and results
- New alternative app icons for Halloween, Thanksgiving, Christmas, Fall, and Winter
- Support for home screen quick actions
Top In-App Purchases

Name

Price

Calculi Pro
$2.99
Large Tip
$4.99
Medium Tip
$2.99
Small Tip
$0.99
Newsletter

Subscribe our newsletter and get useful information every week.

Similar Apps

Stay Ahead of the Market with StoreSpy
Never miss opportunities
Watch your competitors closely
Start boosting your app right away
Start Now
stay a head