# CMCalc vs Calculator 4.0

The clearest difference is in-app purchases: CMCalc at none against Calculator 4.0's 1. CMCalc also leads on ads (none vs shown). Calculator 4.0's advantage is update cadence (fortnightly vs every 45 months) and rating (4.8 vs 4.5). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Calculator 4.0 sells 1 one-off in-app purchase. CMCalc asks for nothing beyond the download.

Calculator 4.0 holds the better App Store score, 4.8 against 4.5. That said, the two scores are not equally well evidenced: Calculator 4.0 has 53 ratings behind it against 6, so its average is the more settled of the two.

CMCalc ships an update every 45 months, Calculator 4.0 fortnightly. The most recent releases landed on October 9, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | CMCalc | Calculator 4.0 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (6 ratings)](https://appshunter.io/ios/app/cmcalc/id974432836/reviews) | **[4.8 (53 ratings)](https://appshunter.io/ios/app/calculator-40/id6445965184/reviews)** |
| Number of ratings | 6 | **53** |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 45 months | **Fortnightly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 4 MB | 65 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [William David](https://appshunter.io/developer/974432835) | [Edison Largo](https://appshunter.io/developer/978541799) |

## 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


### Calculator 4.0

[App page](https://appshunter.io/ios/app/calculator-40/id6445965184)

Perform daily calculations with a clean interface and large buttons. Features include decimal support, a calculation log, and two themes. Regular updates ensure continuous improvement and new functionalities.

**Highlights:** Intuitive interface with large buttons, Backspace key for corrections, Decimal point or comma support, Calculation display log, Two customizable themes, Regular updates with new features

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $5.99 | one-time |


## Frequently asked questions

### Is CMCalc free?

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

### Is Calculator 4.0 free?

Calculator 4.0 is free to download, with in-app purchases available.

### Which has better reviews, CMCalc or Calculator 4.0?

Calculator 4.0 is rated higher. CMCalc averages 4.5 out of 5 from 6 ratings, while Calculator 4.0 averages 4.8 from 53 ratings.

### Do CMCalc or Calculator 4.0 have ads?

Calculator 4.0 shows ads; CMCalc does not.

### Which is updated more often, CMCalc or Calculator 4.0?

CMCalc ships an update every 45 months, and Calculator 4.0 fortnightly. Most recently, CMCalc was updated on October 9, 2026 and Calculator 4.0 on October 14, 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.*