# 乙4 vs 知財検定3級 問題集｜知的財産管理技能検定

The clearest difference is device support: 知財検定3級 問題集｜知的財産管理技能検定 at 3 against 乙4's 1. 知財検定3級 問題集｜知的財産管理技能検定 also leads on iOS requirement (15.6 vs 17.6). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. 乙4 sells 1 in-app purchase, starting at $4.99 per 7 days and 知財検定3級 問題集｜知的財産管理技能検定 sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

乙4 ships an update monthly, 知財検定3級 問題集｜知的財産管理技能検定 every 3 weeks. The most recent releases landed on October 31, 2026 and November 13, 2026 respectively.

## The numbers

| Metric | 乙4 | 知財検定3級 問題集｜知的財産管理技能検定 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Size | 2 MB | 37 MB |
| Requires iOS | 17.6 | **15.6** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [CapCat LLC](https://appshunter.io/developer/1654095841) | [WebAgentStudio](https://appshunter.io/developer/6793124549) |

## What reviewers say

### 乙4

[App page](https://appshunter.io/ios/app/4-4-2026/id6764290217)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 無料でお試しする | $4.99 | per 7 days |


### 知財検定3級 問題集｜知的財産管理技能検定

[App page](https://appshunter.io/ios/app/3/id6804944903)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 全問題アンロック | $2.99 | one-time |


## Frequently asked questions

### Is 乙4 free?

乙4 is free to download, with in-app purchases available.

### Is 知財検定3級 問題集｜知的財産管理技能検定 free?

知財検定3級 問題集｜知的財産管理技能検定 is free to download, with in-app purchases available.

### Do 乙4 or 知財検定3級 問題集｜知的財産管理技能検定 have ads?

Neither 乙4 nor 知財検定3級 問題集｜知的財産管理技能検定 shows ads.

### Which is updated more often, 乙4 or 知財検定3級 問題集｜知的財産管理技能検定?

乙4 ships an update monthly, and 知財検定3級 問題集｜知的財産管理技能検定 every 3 weeks. Most recently, 乙4 was updated on October 31, 2026 and 知財検定3級 問題集｜知的財産管理技能検定 on November 13, 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.*