# CMCalc vs Big character calculator

The clearest difference is ads: CMCalc at none against Big character calculator's shown. CMCalc also leads on iOS requirement (12.0 vs 15.8.3). Big character calculator's advantage is update cadence (every 11 days vs every 45 months). On price, 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, Big character calculator every 11 days. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | CMCalc | Big character calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (7 ratings)](https://appshunter.io/ios/app/cmcalc/id974432836/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 45 months | **Every 11 days** |
| Monetization | Free | — |
| Size | 4 MB | 34 MB |
| Requires iOS | **12.0** | 15.8.3 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [William David](https://appshunter.io/developer/974432835) | [Hideaki Uchikoshi](https://appshunter.io/developer/1559575002) |

## 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


### Big character calculator

[App page](https://appshunter.io/ios/app/big-character-calculator/id6480366253)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CMCalc free?

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

### Is Big character calculator free?

Big character calculator is free to download, with no in-app purchases.

### Do CMCalc or Big character calculator have ads?

Big character calculator shows ads; CMCalc does not.

### Which is updated more often, CMCalc or Big character calculator?

CMCalc ships an update every 45 months, and Big character calculator every 11 days. Most recently, CMCalc was updated on November 3, 2026 and Big character calculator on November 4, 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.*