# Halcyon Calc vs CMCalc

The clearest difference is price: CMCalc at Free against Halcyon Calc's $4.99. CMCalc also leads on iOS requirement (12.0 vs 16.6). Halcyon Calc's advantage is update cadence (every 4 months vs every 45 months) and rating (4.9 vs 4.5). On ads, in-app purchases and device support there is nothing between them.

CMCalc is free to download; Halcyon Calc costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Halcyon Calc holds the better App Store score, 4.9 against 4.5. Both are backed by a comparable volume of ratings — 18 and 6 respectively. Written reviews point the same way: 100% of Halcyon Calc's written reviews are positive against 75% of CMCalc's.

Halcyon Calc ships an update every 4 months, CMCalc every 45 months. Both last shipped on October 9, 2026.

## The numbers

| Metric | Halcyon Calc | CMCalc |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | **[4.9 (18 ratings)](https://appshunter.io/ios/app/halcyon-calc/id327064659/reviews)** | [4.5 (6 ratings)](https://appshunter.io/ios/app/cmcalc/id974432836/reviews) |
| Number of ratings | **18** | 6 |
| Positive reviews | **100.0% of reviews** | 75.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 45 months |
| Monetization | Paid | **Free** |
| Size | 10 MB | 4 MB |
| Requires iOS | 16.6 | **12.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Halcyon Touch Software](https://appshunter.io/developer/327064662) | [William David](https://appshunter.io/developer/974432835) |

## What reviewers say

### Halcyon Calc

[App page](https://appshunter.io/ios/app/halcyon-calc/id327064659)

A powerful calculator app for students, engineers, and scientists. It handles complex numbers, symbolic expressions, unit conversions, and matrix operations, with advanced plotting and programming capabilities.

**Highlights:** Complex number calculations, Symbolic expression manipulation, Unit conversion with custom units, Matrix and vector operations, Symbolic plotting, Programming of custom operations, Statistical data analysis

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### CMCalc

[App page](https://appshunter.io/ios/app/cmcalc/id974432836)

This app emulates a classic 1980s computer math calculator, offering decimal arithmetic, binary conversions, and logic functions. It supports parentheses for complex calculations and includes modern features like copy/paste and landscape mode.

**Highlights:** Decimal arithmetic, Binary conversions (decimal, binary, octal, hexadecimal), Binary logic functions, Operator grouping with parentheses, Hexadecimal input (A-F), Copy and paste results/functions, Landscape mode

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Halcyon Calc free?

Halcyon Calc costs $4.99, with no in-app purchases.

### Is CMCalc free?

CMCalc is free to download, with no in-app purchases.

### Which has better reviews, Halcyon Calc or CMCalc?

Halcyon Calc is rated higher. Halcyon Calc averages 4.9 out of 5 from 18 ratings, while CMCalc averages 4.5 from 6 ratings.

### Do Halcyon Calc or CMCalc have ads?

Neither Halcyon Calc nor CMCalc shows ads.

### Which is updated more often, Halcyon Calc or CMCalc?

Halcyon Calc ships an update every 4 months, and CMCalc every 45 months. Most recently, Halcyon Calc was updated on October 9, 2026 and CMCalc on October 9, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*