# Hagi Heritage vs 公害防止管理者 大気1種 問題集

The clearest difference is in-app purchases: Hagi Heritage at none against 公害防止管理者 大気1種 問題集's 1. Hagi Heritage also leads on iOS requirement (8.0 vs 15.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. 公害防止管理者 大気1種 問題集 sells 1 one-off in-app purchase. Hagi Heritage asks for nothing beyond the download.

Hagi Heritage ships an update every 2 days, 公害防止管理者 大気1種 問題集 every 4 days. The most recent releases landed on October 9, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Hagi Heritage | 公害防止管理者 大気1種 問題集 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 4 days |
| Size | 1.8 GB | 32 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ASTEM/RI](https://appshunter.io/developer/354983137) | [Takuro Fukuma](https://appshunter.io/developer/1896728656) |

## What reviewers say

### Hagi Heritage

[App page](https://appshunter.io/ios/app/hagi-heritage/id1107582240)

**Features:** macOS Compatibility

**In-app purchases:** none


### 公害防止管理者 大気1種 問題集

[App page](https://appshunter.io/ios/app/1/id6800551667)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 全問解放（買い切り） | $6.99 | one-time |


## Frequently asked questions

### Is Hagi Heritage free?

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

### Is 公害防止管理者 大気1種 問題集 free?

公害防止管理者 大気1種 問題集 is free to download, with in-app purchases available.

### Do Hagi Heritage or 公害防止管理者 大気1種 問題集 have ads?

Neither Hagi Heritage nor 公害防止管理者 大気1種 問題集 shows ads.

### Which is updated more often, Hagi Heritage or 公害防止管理者 大気1種 問題集?

Hagi Heritage ships an update every 2 days, and 公害防止管理者 大気1種 問題集 every 4 days. Most recently, Hagi Heritage was updated on October 9, 2026 and 公害防止管理者 大気1種 問題集 on October 25, 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.*