# CACalculator — No-Ad,Simple,Sci.,Date Calc

> Customizable calculator with scientific, date, and simple modes, plus history. (iPhone/iPad app by Shinichiro Terashima.)

- Source: https://appshunter.io/ios/app/cacalculator/id1450800120 (this page in markdown: same URL + `.md`)
- Developer: [Shinichiro Terashima](https://appshunter.io/developer/1450800119)
- Category: Utilities, Education
- Price: Free
- Rating: 4.60/5 from 35 App Store ratings · 7 written reviews indexed
- Age rating: 4+
- Requires: iOS 12.1 · 13 MB
- Languages: American English
- Released: 2019-02-14
- Data updated: 2026-06-10
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/cacalculator/id1450800120/reviews.md

## What is CACalculator?

CACalculator is a simple yet highly customizable and functional calculator that provides the following features.

    1. Type of Calculators
    
         •Simple Calculator
         •Scientific Calculator
         •Date Time Calculator
         •Today's extension (Currently basic functionalities only)

    2.  Common Functionalities to Each Type of Calculator:

        •How to switch the type of Calculator
            -With two fingers swipe left and right or pressing icon, you can change the type of calculator. 
            -For the Date/Time Calculator, at the bottom of screens, there are 4 tabs. By tapping each of tab, you can change the type.

        •How to see the “Settings” screen
            -With two fingers swipe up on any of calculators, you can bring it up.

        •Calculator size in Portrait
            -With two fingers pinch, you can change the size of each calculator.

        •Drag and Drop Button Repositioning
           -By pressing a drag and drop enabled button for .5 seconds, you can lay out the buttons as you prefer.

        •Copy / Paste / Screenshot
            -By Double Tapping the calculator result label, you can see the copy/paste/screenshot menus.

    3.  Settings:

    You can see the Settings screen by pressing the icon or two fingers swipe up.
        
        •Change the theme of the Calculator 
        •Set up the default launching Calculator
        •Enable/Disable the History Functionalities described below.
        •App Icon settings
        •Apple Pencil Double Tap settings
        •Other settings

    4.  Main History Functions:

        •How to show the History pane
            -With single finger swipe left, you can see the history pane on each Calculator’s screen.

        •How to close the History page
            -With single finger swipe right, you can close it.

        •How to restore a history record
            -By pressing a cell for .3 seconds, you can restore the history record.

        •History Menus
            -By swiping right with a single finger on a history cell, you can see sub menus that you can perform such as “Copy”, “Edit”, and "Exclude/Include".
                 You can also exclude a history record from History Actions.
            -By swiping left with a single finger on a history cell, you can delete the record.

        •History Actions
           -By simply typing a number and hitting the equal button successively, you can calculate sum/average/median/min/max.

    5.  External Keyboard Shortcuts:

        •You can switch the type of calculators with "command + left/right" arrow keys. 

        •You can copy/paste/take a screenshot with "command + c", "command + v", and "command +s" respectively. 

        •To show the settings screen, you can type "command + up" arrow key, and to close it, you can type command + down arrow key

        •To toggle the History pane, you can hit the "tab" key on any type of calculator.

        •For the DateTime Calculator, you can change the type of calculators by hitting "command + 1 to 4". With "command + 6", you can call the copyAll functionality.

       •For the Simple / Scientific Calculator, you can control it by your keyboard. The key mappings are below.
 
     Addition -> +
     Subtraction -> -
     Multiplication -> *
     Division -> /
     SignChanger -> |
     π -> p
     e -> e
     random -> r
     Percent -> %
     Equals -> either = or enter
     delete -> delete or backspace
     command + 1 -> Sum
     command + 2 -> Count
     command + 3 -> Average
     command + 4 -> Median
     command + 5 -> Max
     command + 6 -> Min
     command + 7 -> Copy All
     command + delete -> Delete All Histories?

    6. Other Usages:
       •Slide Over / Split View.
       •Mouse/Trackpad support
       •Tax Calculation
           -After entering a number, enter +/- followed by "your tax rate" and %. (i.e. 1200 + 8 %)

 *Please rate the app, leave a review.

Thank you.

## Key features

- Simple, Scientific, and Date/Time calculators
- Customizable button layout
- Theme customization
- History pane with edit and exclude options
- Copy, paste, and screenshot functionality
- External keyboard shortcuts

## Recent user reviews (7 of 7)

All indexed reviews: https://appshunter.io/ios/app/cacalculator/id1450800120/reviews.md

### 5/5 — Simple and elegant

*2023-11-04*

Sophisticated and pleasant appearance, works perfectly. The only thing I’d like to be able to change are the underscores of the numbers and functions on the keys.

### 5/5 — Such A Relief

*2020-06-06, version 1.1.3*

No Ads... No Ads... No Ads! It’s like location... location... location!

‘Nuff Said!

### 5/5 — Best one available!

*2020-04-26, version 1.1.1*

There are a lot of junk calculators on the Apple App Store.  This is not one of them.  This calculator is well designed well thought out.  Very impressive. A true Godsend. No ads! No pop ups!

### 5/5 — Thank you

*2020-04-02, version 1.1.0*

No ads what more can you ask plus a beautiful ui. Nice like really nice 👍.

The only gripe is no window mode for multitasking. Please add that soon. But otherwise wonderful app. 

Thank you thank you thank also for adding landscape mode! Biggest gripe I have with apps on my iPad but you have it. 😉 Nice

### 5/5 — Thank you

*2020-02-17, version 1.1.0*

I absolutely love this app.  And it is true truly ad free. The date calculator is awesome. But please give the option to display years and days.   Worth the download, stop paying for what should be free when you buy a tablet .

### 5/5 — Very cool

*2019-03-22, version 1.0.0*

This calculator is a joy to look at and it has some features that are very useful. It stores a list of your past calculations, so that you can make new calculations from older calculation results. It also has a digit to English (fully written out numbers in English) translator.

It takes some time to get acquainted with some of the features of the calculator, but I think it is worth the time investment.

In full disclosure, the app creator is my friend, so give him a good review, and message him if you have any questions or comments!

### 5/5 — Excellent calculator

*2019-02-18, version 1.0.0*

Great UI, super easy to use. Love the date calculator features!

## Frequently asked questions about CACalculator

### What types of calculators does CACalculator offer?

CACalculator provides a Simple Calculator, a Scientific Calculator, and a Date Time Calculator. It also includes a basic 'Today's extension' functionality.

### How can I switch between calculator types in CACalculator?

You can switch calculator types by swiping left or right with two fingers on the calculator screen, or by pressing the calculator type icon. The Date/Time calculator has specific tabs at the bottom for different functions.

### Can I customize the appearance of CACalculator?

Yes, CACalculator allows you to change the theme of the calculator through the Settings screen. You can also adjust the calculator size in portrait mode using a pinch gesture.

### How does the history function work in CACalculator?

You can access the history pane by swiping left with a single finger. Records can be restored by pressing a cell for 0.3 seconds, and further actions like copy, edit, exclude, or delete are available via swiping gestures on history cells.

### Does CACalculator support external keyboards?

Yes, CACalculator offers external keyboard shortcuts for efficient use. You can switch calculator types, copy, paste, take screenshots, and toggle the history pane using keyboard commands.

### What is the update frequency for CACalculator?

CACalculator was last updated on March 20, 2022, with version 1.1.9. While specific update frequency isn't detailed, this indicates it receives ongoing maintenance.

### Is CACalculator available on other devices besides iPad?

Based on the provided data, CACalculator is currently listed as supported on 'ipad' devices. Availability on other platforms like iPhone or Android is not specified.

### What are the benefits of the drag and drop button repositioning in CACalculator?

The drag and drop button repositioning allows you to personalize the layout of the calculator buttons to suit your workflow. By pressing a button for 0.5 seconds, you can arrange it as you prefer for easier access.

## Version history (last 5 releases)

### 1.1.9 — 2022-03-20

The version 1.1.9 includes the following enhancements:

1.	Added support for the new iPad Air.

*Please rate the app or leave a review.
Thank you.

### 1.1.8 — 2021-09-18

The version 1.1.8 includes the following enhancements:

1.	Added initial support for iPadOS 15.
2.	Added support for the new iPad and iPad mini.

*Please rate the app or leave a review.
Thank you.

### 1.1.7 — 2021-06-21

The version 1.1.7 includes the following enhancements:

1.	Added Quick Action in iPad OS 13 or later.

2.	Added Date Diff Format Settings.
        -You can choose one of the formats ( Days || Years / Days || Months / Days | | Years / Months / Days ) for the Date Diff Calculator.

3.	Added Min/Mad Diff calculation to the Time Diff Calculator.
4.	Fixed a minor UI issue.
5.	Cleaned up internal source codes.

*Please rate the app or leave a review.
Thank you.

### 1.1.6 — 2021-06-05

The version 1.1.6 includes the following enhancements:

1.	Added support for the new iPad Pros.

*Please rate the app or leave a review.
Thank you.

### 1.1.5 — 2020-09-22

The version 1.1.5 includes the following enhancements:

1.	Added support for the new iPad / iPad Air.
2.	Added initial support for iPadOS 14.
3.	Updated the UI.

*Please rate the app or leave a review.
Thank you.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*