# KumamonCalc vs ShoppingCalculator byNSDev

The clearest difference is in-app purchases: ShoppingCalculator byNSDev at none against KumamonCalc's 1. ShoppingCalculator byNSDev also leads on ads (none vs shown). KumamonCalc's advantage is update cadence (every 3 months vs every 39 months) and iOS requirement (13.0 vs 15.6). On price and device support there is nothing between them.

Both are free to download. KumamonCalc sells 1 one-off in-app purchase. ShoppingCalculator byNSDev asks for nothing beyond the download.

KumamonCalc ships an update every 3 months, ShoppingCalculator byNSDev every 39 months. The most recent releases landed on October 23, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | KumamonCalc | ShoppingCalculator byNSDev |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/kumamoncalc/id830364492/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 3 months** | Every 39 months |
| Monetization | Free with in-app purchases | — |
| Size | 50 MB | 4 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [woodsmall inc.](https://appshunter.io/developer/708077492) | [NIHON SYSTEM DEVELOPER CORPORATION](https://appshunter.io/developer/1198103734) |

## What reviewers say

### KumamonCalc

[App page](https://appshunter.io/ios/app/kumamoncalc/id830364492)

A straightforward calculator featuring the popular Kumamon character. It supports basic arithmetic, percentage calculations, and memory functions. Users can customize themes and toggle sound effects.

**Highlights:** Basic arithmetic operations, Percentage calculation, Memory function, Customizable themes, Sound ON/OFF option, 12-digit input support

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Advertising hide | $4.99 | one-time |


### ShoppingCalculator byNSDev

[App page](https://appshunter.io/ios/app/shoppingcalculator-bynsdev/id1279295619)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is KumamonCalc free?

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

### Is ShoppingCalculator byNSDev free?

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

### Do KumamonCalc or ShoppingCalculator byNSDev have ads?

KumamonCalc shows ads; ShoppingCalculator byNSDev does not.

### Which is updated more often, KumamonCalc or ShoppingCalculator byNSDev?

KumamonCalc ships an update every 3 months, and ShoppingCalculator byNSDev every 39 months. Most recently, KumamonCalc was updated on October 23, 2026 and ShoppingCalculator byNSDev on October 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.*