---
title: "CMCalc - Reviews, Revenue and Downloads in United States | Apple App Store"
description: "The CMCalc application is a replica of the Casio CM-100 Computer Math Calc solar powered calculator that was sold in the mid 1980’s. It performs simple decimal arithmetic and basic binary conversions "
---

# CMCalc — United States
> Computer Math Calculator

![CMCalc App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/bf/47/43/bf4743e2-3ad6-ac60-7ead-be5b04e948be/AppIcon-0-0-1x_U007emarketing-0-11-0-0-85-220.png/400x400bb.png)

**Developer:** [William David](https://apptail.io/developer/william-david-xWYd)
**Category:** Utilities
**Rating:** 4.5/5 (6 ratings)
**Price:** Free
**Bundle ID:** com.WEDInteractive.CMCalc
**Store:** Apple App Store
**Country:** United States
**Version:** 1.3 (released 2026-02-13)
**Original Release:** 2015-03-12

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id974432836)
**AppTail Page:** [https://apptail.io/app/cmcalc-OhLf/united-states](https://apptail.io/app/cmcalc-OhLf/united-states)

## CMCalc Description
The CMCalc application is a replica of the Casio CM-100 Computer Math Calc solar powered calculator that was sold in the mid 1980’s. It performs simple decimal arithmetic and basic binary conversions (decimal - binary - octal - hexadecimal) and binary logic functions. While it is a standard infix calculator, it supports operator grouping with parentheses. For hexadecimal calculations, the input keys include A through F.

CMCalc application performs all the same functions as the calculator, and has the same look as the original. There are a couple features that were not conceivable in the 1980’s on a calculator … such as the ability to copy and paste the results or the entered function, and a landscape mode for devices with 4 inch or larger screens. The face of the calculator can be viewed in two modes including a traditional application style, and a photo replica of the original calculator face.

## CMCalc Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/d4/88/19/d48819fa-67a8-7579-cf35-28893a262de8/pr_source.png/640x960.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/c6/04/7e/c6047ef4-d914-617d-2291-897cc7263fb3/pr_source.png/640x960.png)

## CMCalc Rating Breakdown in United States
- 5 stars: 4 (67%)
- 4 stars: 1 (17%)
- 3 stars: 1 (17%)
- 2 stars: 0 (0%)
- 1 stars: 0 (0%)

## CMCalc Reviews in United States

### ***** "Amazing Calculator"
Amazing calculator, love the hms conversion option!
-- hDave053, 2023-01-07

### ***** "Does not work with IOS 12"
Love this calculator and it stopped working after IOS 12 update. 😞
-- Rjhdakota, 2018-09-22

### ***-- "It's OK."
I have a cm100 (from the eighties) and its a fantastic calculator for programmers. Mine still worked perfectly until the other day when the "A" key fell off. I was hoping this would be a good replacement. Its just OK. One of the most annoying things is that when you push the HEX, BIN, OCT keys it doesn't put populate the display with the leading zeros. For some reason that really bugs me. I also enjoy emulators that go the extra mile. For instance, the cm100 puts a little +,-,* etc on the right hand side of the screen when using those. This doesn't, it has a really annoying text box at the top which looks awful and ruins the whole feel of the app.
-- TigerPhone, 2016-08-25

[View all CMCalc reviews and detailed analytics on AppTail](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=reviews)




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## CMCalc Available In
- [United States](https://apptail.io/app/cmcalc-OhLf/united-states)
- [Japan](https://apptail.io/app/cmcalc-OhLf/japan)
- [Australia](https://apptail.io/app/cmcalc-OhLf/australia)
- [Belarus](https://apptail.io/app/cmcalc-OhLf/belarus)
- [Switzerland](https://apptail.io/app/cmcalc-OhLf/switzerland)
- [China](https://apptail.io/app/cmcalc-OhLf/china)
- [Egypt](https://apptail.io/app/cmcalc-OhLf/egypt)
- [United Kingdom](https://apptail.io/app/cmcalc-OhLf/united-kingdom)
- [Hong Kong SAR China](https://apptail.io/app/cmcalc-OhLf/hong-kong)
- [India](https://apptail.io/app/cmcalc-OhLf/india)
- [Lebanon](https://apptail.io/app/cmcalc-OhLf/lebanon)
- [Madagascar](https://apptail.io/app/cmcalc-OhLf/madagascar)
- [Malaysia](https://apptail.io/app/cmcalc-OhLf/malaysia)
- [Philippines](https://apptail.io/app/cmcalc-OhLf/philippines)
- [Pakistan](https://apptail.io/app/cmcalc-OhLf/pakistan)
- [Singapore](https://apptail.io/app/cmcalc-OhLf/singapore)
- [Türkiye](https://apptail.io/app/cmcalc-OhLf/turkey)
- [Taiwan](https://apptail.io/app/cmcalc-OhLf/taiwan)
- [United Arab Emirates](https://apptail.io/app/cmcalc-OhLf/united-arab-emirates)
- [South Africa](https://apptail.io/app/cmcalc-OhLf/south-africa)
- [Argentina](https://apptail.io/app/cmcalc-OhLf/argentina)
- [Brunei](https://apptail.io/app/cmcalc-OhLf/brunei)

---

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