# 당신의뇌구조 vs 3単語日記

The clearest difference is ads: 3単語日記 at none against 당신의뇌구조's shown. 3単語日記 also leads on iOS requirement (12.0 vs 15.1). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

당신의뇌구조 ships an update every 2 weeks, 3単語日記 weekly. The most recent releases landed on September 9, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | 당신의뇌구조 | 3単語日記 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 83.3% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | **Weekly** |
| Size | 44 MB | 37 MB |
| Requires iOS | 15.1 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [MinHee Jo](https://appshunter.io/developer/372975259) | [KnotNest](https://appshunter.io/developer/1813321541) |

## What reviewers say

### 당신의뇌구조

[App page](https://appshunter.io/ios/app/id1549397471)

**In-app purchases:** none


### 3単語日記

[App page](https://appshunter.io/ios/app/3/id6745698061)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 당신의뇌구조 free?

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

### Is 3単語日記 free?

3単語日記 is free to download, with no in-app purchases.

### Do 당신의뇌구조 or 3単語日記 have ads?

당신의뇌구조 shows ads; 3単語日記 does not.

### Which is updated more often, 당신의뇌구조 or 3単語日記?

당신의뇌구조 ships an update every 2 weeks, and 3単語日記 weekly. Most recently, 당신의뇌구조 was updated on September 9, 2026 and 3単語日記 on September 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.*