# CMCalc vs ZCalcIt

The clearest difference is update cadence: ZCalcIt at every 11 months against CMCalc's every 45 months. CMCalc's advantage is iOS requirement (12.0 vs 17.2). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

CMCalc ships an update every 45 months, ZCalcIt every 11 months. The most recent releases landed on October 29, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | CMCalc | ZCalcIt |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (7 ratings)](https://appshunter.io/ios/app/cmcalc/id974432836/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 45 months | **Every 11 months** |
| Monetization | Free | — |
| Size | 4 MB | 7 MB |
| Requires iOS | **12.0** | 17.2 |
| Devices | iPhone, iPod | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [William David](https://appshunter.io/developer/974432835) | [Zynergy Apps](https://appshunter.io/developer/1565381898) |

## What reviewers say

### 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


### ZCalcIt

[App page](https://appshunter.io/ios/app/zcalcit/id1660452783)

**In-app purchases:** none


## Frequently asked questions

### Is CMCalc free?

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

### Is ZCalcIt free?

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

### Do CMCalc or ZCalcIt have ads?

Neither CMCalc nor ZCalcIt shows ads.

### Which is updated more often, CMCalc or ZCalcIt?

CMCalc ships an update every 45 months, and ZCalcIt every 11 months. Most recently, CMCalc was updated on October 29, 2026 and ZCalcIt on October 27, 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.*