# IT用語図鑑【公式】 vs 税単：税金単語帳

The clearest difference is review sentiment: IT用語図鑑【公式】 at 50% against 税単：税金単語帳's 0%. IT用語図鑑【公式】 also leads on ads (none vs shown) and update cadence (every 3 days vs fortnightly). 税単：税金単語帳's advantage is iOS requirement (13.4 vs 17.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. IT用語図鑑【公式】 sells 1 one-off in-app purchase and 税単：税金単語帳 sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

IT用語図鑑【公式】 ships an update every 3 days, 税単：税金単語帳 fortnightly. Both last shipped on October 24, 2026.

## The numbers

| Metric | IT用語図鑑【公式】 | 税単：税金単語帳 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **50.0% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 3 days** | Fortnightly |
| Monetization | Free with in-app purchases | — |
| Size | 40 MB | 35 MB |
| Requires iOS | 17.0 | **13.4** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Toshikatsu Masui](https://appshunter.io/developer/1462560470) | [Creatopia Inc.](https://appshunter.io/developer/1523447963) |

## What reviewers say

### IT用語図鑑【公式】

[App page](https://appshunter.io/ios/app/it/id1462560471)

This app provides a visual dictionary of IT terms, featuring illustrations, related stories, and usage examples. It offers 100 terms for free and unlocks all keywords through in-app purchases. It's designed to help users understand and remember the ever-evolving IT vocabulary.

**Highlights:** Illustrated IT terms, Genre-based categorization, Related stories and anecdotes, Usage examples, In-app content purchases, Book purchase bonuses

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| すべてのキーワードを購入する | $2.99 | one-time |


### 税単：税金単語帳

[App page](https://appshunter.io/ios/app/id6504324322)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 税単プレミアム会員登録 | $19.99 | one-time |


## Frequently asked questions

### Is IT用語図鑑【公式】 free?

IT用語図鑑【公式】 is free to download, with in-app purchases available.

### Is 税単：税金単語帳 free?

税単：税金単語帳 is free to download, with in-app purchases available.

### Do IT用語図鑑【公式】 or 税単：税金単語帳 have ads?

税単：税金単語帳 shows ads; IT用語図鑑【公式】 does not.

### Which is updated more often, IT用語図鑑【公式】 or 税単：税金単語帳?

IT用語図鑑【公式】 ships an update every 3 days, and 税単：税金単語帳 fortnightly. Most recently, IT用語図鑑【公式】 was updated on October 24, 2026 and 税単：税金単語帳 on October 24, 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.*