# Geometry Calculator lite vs 素数チャレンジ！

The clearest difference is update cadence: 素数チャレンジ！ at every 6 days against Geometry Calculator lite's every 5 weeks. Geometry Calculator lite's advantage is iOS requirement (17.6 vs 26.2). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Geometry Calculator lite sells 1 one-off in-app purchase and 素数チャレンジ！ sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Geometry Calculator lite ships an update every 5 weeks, 素数チャレンジ！ every 6 days. The most recent releases landed on November 4, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Geometry Calculator lite | 素数チャレンジ！ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (79 ratings)](https://appshunter.io/ios/app/geometry-calculator-lite/id1579330072/reviews)** | — |
| Number of ratings | **79** | — |
| Positive reviews | 41.7% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 5 weeks | **Every 6 days** |
| Monetization | Free with in-app purchases | — |
| Size | 56 MB | 6 MB |
| Requires iOS | **17.6** | 26.2 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [V PUGAZHENTHI](https://appshunter.io/developer/491898049) | [Kenji Yanase](https://appshunter.io/developer/1865920313) |

## What reviewers say

### Geometry Calculator lite

[App page](https://appshunter.io/ios/app/geometry-calculator-lite/id1579330072)

Calculate key parameters for 26 geometric shapes, including 2D planes and 3D solids. Offers 783 calculations with interactive 3D views for solids. Supports multiple languages and devices.

**Highlights:** Calculates parameters for 26 geometric shapes, Supports 783 different calculations, Interactive 3D view for solids, Covers 2D planes and 3D solids, Available in multiple languages, Works on iPhone and iPad

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 25 Geometry Calculators | $2.99 | one-time |


### 素数チャレンジ！

[App page](https://appshunter.io/ios/app/id6767792008)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| プレミアム機能 | $0.99 | one-time |


## Frequently asked questions

### Is Geometry Calculator lite free?

Geometry Calculator lite is free to download, with in-app purchases available.

### Is 素数チャレンジ！ free?

素数チャレンジ！ is free to download, with in-app purchases available.

### Do Geometry Calculator lite or 素数チャレンジ！ have ads?

Both Geometry Calculator lite and 素数チャレンジ！ show ads.

### Which is updated more often, Geometry Calculator lite or 素数チャレンジ！?

Geometry Calculator lite ships an update every 5 weeks, and 素数チャレンジ！ every 6 days. Most recently, Geometry Calculator lite was updated on November 4, 2026 and 素数チャレンジ！ on November 5, 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.*