# ITエンジニアのための英単語 vs システム監査技術者

The clearest difference is in-app purchases: ITエンジニアのための英単語 at none against システム監査技術者's 1. システム監査技術者's advantage is update cadence (every 2 days vs every 2 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. システム監査技術者 sells 1 one-off in-app purchase. ITエンジニアのための英単語 asks for nothing beyond the download.

ITエンジニアのための英単語 ships an update every 2 weeks, システム監査技術者 every 2 days. The most recent releases landed on October 13, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | ITエンジニアのための英単語 | システム監査技術者 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 2 days** |
| Size | 11 MB | 5 MB |
| Requires iOS | 16.4 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Hiroaki Toya](https://appshunter.io/developer/1515661642) | [TAKAYUKI OOTA](https://appshunter.io/developer/1855196437) |

## What reviewers say

### ITエンジニアのための英単語

[App page](https://appshunter.io/ios/app/it/id6475651804)

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

**In-app purchases:** none


### システム監査技術者

[App page](https://appshunter.io/ios/app/id6757284046)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| システム監査技術者 試験対策 | $1.99 | one-time |


## Frequently asked questions

### Is ITエンジニアのための英単語 free?

ITエンジニアのための英単語 is free to download, with no in-app purchases.

### Is システム監査技術者 free?

システム監査技術者 is free to download, with in-app purchases available.

### Do ITエンジニアのための英単語 or システム監査技術者 have ads?

Neither ITエンジニアのための英単語 nor システム監査技術者 shows ads.

### Which is updated more often, ITエンジニアのための英単語 or システム監査技術者?

ITエンジニアのための英単語 ships an update every 2 weeks, and システム監査技術者 every 2 days. Most recently, ITエンジニアのための英単語 was updated on October 13, 2026 and システム監査技術者 on October 25, 2026.

---

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