# 技術士 一次試験（化学部門） vs 歴検2級 過去問・暗記アプリ

The clearest difference is ads: 技術士 一次試験（化学部門） at none against 歴検2級 過去問・暗記アプリ's shown. 技術士 一次試験（化学部門） also leads on update cadence (every 2 days vs every 3 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. 技術士 一次試験（化学部門） sells 1 one-off in-app purchase and 歴検2級 過去問・暗記アプリ sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

技術士 一次試験（化学部門） ships an update every 2 days, 歴検2級 過去問・暗記アプリ every 3 weeks. The most recent releases landed on October 3, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | 技術士 一次試験（化学部門） | 歴検2級 過去問・暗記アプリ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 days** | Every 3 weeks |
| Size | 5 MB | 42 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [TAKAYUKI OOTA](https://appshunter.io/developer/1855196437) | [Hajime App Lab](https://appshunter.io/developer/1704838092) |

## What reviewers say

### 技術士 一次試験（化学部門）

[App page](https://appshunter.io/ios/app/id6757369958)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 技術士（化学部門） 試験対策 | $1.99 | one-time |


### 歴検2級 過去問・暗記アプリ

[App page](https://appshunter.io/ios/app/2/id6793736734)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 広告削除 | $3.99 | one-time |
| 全問題解放 | $3.99 | one-time |
| 広告削除+全問題解放 | $5.99 | one-time |


## Frequently asked questions

### Is 技術士 一次試験（化学部門） free?

技術士 一次試験（化学部門） is free to download, with in-app purchases available.

### Is 歴検2級 過去問・暗記アプリ free?

歴検2級 過去問・暗記アプリ is free to download, with in-app purchases available.

### Do 技術士 一次試験（化学部門） or 歴検2級 過去問・暗記アプリ have ads?

歴検2級 過去問・暗記アプリ shows ads; 技術士 一次試験（化学部門） does not.

### Which is updated more often, 技術士 一次試験（化学部門） or 歴検2級 過去問・暗記アプリ?

技術士 一次試験（化学部門） ships an update every 2 days, and 歴検2級 過去問・暗記アプリ every 3 weeks. Most recently, 技術士 一次試験（化学部門） was updated on October 3, 2026 and 歴検2級 過去問・暗記アプリ on October 10, 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.*