# Mathematical Playground vs ○○といえば？ 司法書士試験ver

The clearest difference is price: ○○といえば？ 司法書士試験ver at Free against Mathematical Playground's $1.99. ○○といえば？ 司法書士試験ver also leads on update cadence (every 2 weeks vs every 2 months) and iOS requirement (15.1 vs 17.6). Mathematical Playground's advantage is in-app purchases (none vs 2). On ads and device support there is nothing between them.

○○といえば？ 司法書士試験ver is free to download; Mathematical Playground costs $1.99 up front. ○○といえば？ 司法書士試験ver sells 2 in-app purchases, starting at $0.49 per month. Mathematical Playground asks for nothing beyond the download.

Mathematical Playground ships an update every 2 months, ○○といえば？ 司法書士試験ver every 2 weeks. The most recent releases landed on September 8, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Mathematical Playground | ○○といえば？ 司法書士試験ver |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Positive reviews | 22.2% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | Paid | — |
| Size | 96 MB | 30 MB |
| Requires iOS | 17.6 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jun Nakashima](https://appshunter.io/developer/1130820204) | [masayuki kashihara](https://appshunter.io/developer/1895816022) |

## What reviewers say

### Mathematical Playground

[App page](https://appshunter.io/ios/app/mathematical-playground/id1180400849)

An educational tool for learning and teaching about 3D mathematical shapes. It offers features like measuring dimensions, cutting shapes, and coloring, making complex geometry accessible for students and educators.

**Highlights:** Measure length, area, distance, angles, and volume, Cut shapes along a specified plane, Expand shapes face by face, Color and highlight shapes, Handwriting and screenshot tools, Share shape data wirelessly

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

**In-app purchases:** none


### ○○といえば？ 司法書士試験ver

[App page](https://appshunter.io/ios/app/ver/id6776108074)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium (Monthly) | $0.49 | per month |
| プレミアム（年額） | $5.99 | per year |


## Frequently asked questions

### Is Mathematical Playground free?

Mathematical Playground costs $1.99, with no in-app purchases.

### Is ○○といえば？ 司法書士試験ver free?

○○といえば？ 司法書士試験ver is free to download, with in-app purchases available.

### Do Mathematical Playground or ○○といえば？ 司法書士試験ver have ads?

Neither Mathematical Playground nor ○○といえば？ 司法書士試験ver shows ads.

### Which is updated more often, Mathematical Playground or ○○といえば？ 司法書士試験ver?

Mathematical Playground ships an update every 2 months, and ○○といえば？ 司法書士試験ver every 2 weeks. Most recently, Mathematical Playground was updated on September 8, 2026 and ○○といえば？ 司法書士試験ver on September 20, 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.*