# The Simple Calculator vs Duodecuple Calc

The clearest difference is in-app purchases: Duodecuple Calc at none against The Simple Calculator's 1. The Simple Calculator's advantage is iOS requirement (12.0 vs 15.8.3). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. The Simple Calculator sells 1 one-off in-app purchase. Duodecuple Calc asks for nothing beyond the download.

The Simple Calculator ships an update weekly, Duodecuple Calc every 2 weeks. The most recent releases landed on October 8, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | The Simple Calculator | Duodecuple Calc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (171 ratings)](https://appshunter.io/ios/app/the-simple-calculator-solve/id1525169566/reviews)** | — |
| Number of ratings | **171** | — |
| Positive reviews | 76.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Weekly** | Every 2 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 28 MB | 36 MB |
| Requires iOS | **12.0** | 15.8.3 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Andreas Skotadis](https://appshunter.io/developer/1525168367) | [Hideaki Uchikoshi](https://appshunter.io/developer/1559575002) |

## What reviewers say

### The Simple Calculator

[App page](https://appshunter.io/ios/app/the-simple-calculator-solve/id1525169566)

This app offers a straightforward way to perform everyday calculations, including basic arithmetic, roots, percentages, and geometric formulas for common shapes. It supports fractions and offers convenient features like dark mode and copy-paste functionality.

**Highlights:** Basic arithmetic operations, Roots and percentages, Geometric calculations for shapes, Fraction support, Portrait and landscape modes, Dark mode, Copy and paste results

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |


### Duodecuple Calc

[App page](https://appshunter.io/ios/app/duodecuple-calc/id6742208421)

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

**In-app purchases:** none


## Frequently asked questions

### Is The Simple Calculator free?

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

### Is Duodecuple Calc free?

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

### Do The Simple Calculator or Duodecuple Calc have ads?

Both The Simple Calculator and Duodecuple Calc show ads.

### Which is updated more often, The Simple Calculator or Duodecuple Calc?

The Simple Calculator ships an update weekly, and Duodecuple Calc every 2 weeks. Most recently, The Simple Calculator was updated on October 8, 2026 and Duodecuple Calc on September 23, 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.*