# Calculation Machine vs Dual Calculator

The clearest difference is ads: Calculation Machine at none against Dual Calculator's shown. Calculation Machine also leads on iOS requirement (12.0 vs 15.0). 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.

## The numbers

| Metric | Calculation Machine | Dual Calculator |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | — | Every 5 months |
| Size | 25 MB | 33 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [RECEP OGUZHAN SENOGLU](https://appshunter.io/developer/1726731806) | [Huzaib Sayyed](https://appshunter.io/developer/1778310247) |

## What reviewers say

### Calculation Machine

[App page](https://appshunter.io/ios/app/calculation-machine/id6476459597)

**Features:** macOS Compatibility

**In-app purchases:** none


### Dual Calculator

[App page](https://appshunter.io/ios/app/dual-calculator-split-screen/id6738931674)

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

**In-app purchases:** none


## Frequently asked questions

### Is Calculation Machine free?

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

### Is Dual Calculator free?

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

### Do Calculation Machine or Dual Calculator have ads?

Dual Calculator shows ads; Calculation Machine does not.

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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.*