# Euclid Lab vs かけざんであそぼ

The clearest difference is in-app purchases: Euclid Lab at none against かけざんであそぼ's 1. Euclid Lab also leads on update cadence (every 3 days vs monthly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. かけざんであそぼ sells 1 one-off in-app purchase. Euclid Lab asks for nothing beyond the download.

Euclid Lab ships an update every 3 days, かけざんであそぼ monthly. The most recent releases landed on November 6, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Euclid Lab | かけざんであそぼ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 days** | Monthly |
| Size | 14 MB | 1 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Yung-Hsin Shieh](https://appshunter.io/developer/6794223212) | [YONONAKA LLC](https://appshunter.io/developer/6779645473) |

## What reviewers say

### Euclid Lab

[App page](https://appshunter.io/ios/app/euclid-lab/id6801162141)

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

**In-app purchases:** none


### かけざんであそぼ

[App page](https://appshunter.io/ios/app/id6804197293)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock All | $2.99 | one-time |


## Frequently asked questions

### Is Euclid Lab free?

Euclid Lab is free to download, with no in-app purchases.

### Is かけざんであそぼ free?

かけざんであそぼ is free to download, with in-app purchases available.

### Do Euclid Lab or かけざんであそぼ have ads?

Neither Euclid Lab nor かけざんであそぼ shows ads.

### Which is updated more often, Euclid Lab or かけざんであそぼ?

Euclid Lab ships an update every 3 days, and かけざんであそぼ monthly. Most recently, Euclid Lab was updated on November 6, 2026 and かけざんであそぼ on October 31, 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.*