# Onikeisan vs 環境法令検定対策

The clearest difference is price: Onikeisan at Free against 環境法令検定対策's $4.99. Onikeisan also leads on iOS requirement (12.0 vs 15.1). On update cadence, ads, in-app purchases and device support there is nothing between them.

Onikeisan is free to download; 環境法令検定対策 costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Onikeisan ships an update every 9 days, 環境法令検定対策 fortnightly. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Onikeisan | 環境法令検定対策 |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 9 days** | Fortnightly |
| Size | 37 MB | 34 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [iori kojima](https://appshunter.io/developer/1493044568) | [satoshi yoshida](https://appshunter.io/developer/1873856165) |

## What reviewers say

### Onikeisan

[App page](https://appshunter.io/ios/app/onikeisan-n-back/id6745093026)

**Features:** macOS Compatibility

**In-app purchases:** none


### 環境法令検定対策

[App page](https://appshunter.io/ios/app/id6769649366)

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

**In-app purchases:** none


## Frequently asked questions

### Is Onikeisan free?

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

### Is 環境法令検定対策 free?

環境法令検定対策 costs $4.99, with no in-app purchases.

### Do Onikeisan or 環境法令検定対策 have ads?

Neither Onikeisan nor 環境法令検定対策 shows ads.

### Which is updated more often, Onikeisan or 環境法令検定対策?

Onikeisan ships an update every 9 days, and 環境法令検定対策 fortnightly. Most recently, Onikeisan was updated on October 30, 2026 and 環境法令検定対策 on October 31, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*