# ShoppingCalculator byNSDev vs Geek Math

The clearest difference is in-app purchases: ShoppingCalculator byNSDev at none against Geek Math's 1. ShoppingCalculator byNSDev also leads on ads (none vs shown). Geek Math's advantage is update cadence (every 10 months vs every 39 months) and iOS requirement (12.0 vs 15.6). On price and device support there is nothing between them.

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

ShoppingCalculator byNSDev ships an update every 39 months, Geek Math every 10 months. The most recent releases landed on October 8, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | ShoppingCalculator byNSDev | Geek Math |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/geek-math-linking-numbers/id6474589909/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 39 months | **Every 10 months** |
| Monetization | — | Free with in-app purchases |
| Size | 4 MB | 29 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [NIHON SYSTEM DEVELOPER CORPORATION](https://appshunter.io/developer/1198103734) | [QQ TSUBASA](https://appshunter.io/developer/568750169) |

## What reviewers say

### ShoppingCalculator byNSDev

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Geek Math

[App page](https://appshunter.io/ios/app/geek-math-linking-numbers/id6474589909)

This calculator app features an intuitive column layout for multiple equations, allowing real-time modification of numbers and operators. It offers interactive linking of numbers and a unique lock feature to protect important values.

**Highlights:** Intuitive column layout, Real-time equation modification, Linked numbers for interactive calculation, Lock feature for number protection, Multi-line display, Theme selection

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium No ad & more math rows | $1.99 | one-time |


## Frequently asked questions

### Is ShoppingCalculator byNSDev free?

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

### Is Geek Math free?

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

### Do ShoppingCalculator byNSDev or Geek Math have ads?

Geek Math shows ads; ShoppingCalculator byNSDev does not.

### Which is updated more often, ShoppingCalculator byNSDev or Geek Math?

ShoppingCalculator byNSDev ships an update every 39 months, and Geek Math every 10 months. Most recently, ShoppingCalculator byNSDev was updated on October 8, 2026 and Geek Math on October 24, 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.*