# ACalcM vs Quatuordecuple Calc

The clearest difference is in-app purchases: Quatuordecuple Calc at none against ACalcM's 1. Quatuordecuple Calc also leads on update cadence (every 2 weeks vs every 8 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. ACalcM sells 1 one-off in-app purchase. Quatuordecuple Calc asks for nothing beyond the download.

ACalcM ships an update every 8 months, Quatuordecuple Calc every 2 weeks. The most recent releases landed on September 23, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | ACalcM | Quatuordecuple Calc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (26 ratings)](https://appshunter.io/ios/app/acalcm/id605657598/reviews)** | — |
| Number of ratings | **26** | — |
| Positive reviews | 90.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 8 months | **Every 2 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 13 MB | 36 MB |
| Requires iOS | **15.6** | 15.8.3 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Asoft.iOS](https://appshunter.io/developer/562152712) | [Hideaki Uchikoshi](https://appshunter.io/developer/1559575002) |

## What reviewers say

### ACalcM

[App page](https://appshunter.io/ios/app/acalcm/id605657598)

This calculator app enhances standard functionality with an editable list to track numbers and operators. It allows for easy modification of entries, row insertion, and calculation sharing via email. Advanced features include memory functions, rounding options, and design customization.

**Highlights:** Editable calculation list, Memory function, Row insert function, Email calculation results, Rounding function, Design customization

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $3.99 | one-time |


### Quatuordecuple Calc

[App page](https://appshunter.io/ios/app/quatuordecuple-calc/id6742386184)

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

**In-app purchases:** none


## Frequently asked questions

### Is ACalcM free?

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

### Is Quatuordecuple Calc free?

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

### Do ACalcM or Quatuordecuple Calc have ads?

Both ACalcM and Quatuordecuple Calc show ads.

### Which is updated more often, ACalcM or Quatuordecuple Calc?

ACalcM ships an update every 8 months, and Quatuordecuple Calc every 2 weeks. Most recently, ACalcM was updated on September 23, 2026 and Quatuordecuple Calc on September 8, 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.*