# 성인의 수학 vs Compendium Lab

The clearest difference is ads: Compendium Lab at none against 성인의 수학's shown. 성인의 수학's advantage is update cadence (weekly vs every 4 weeks) and iOS requirement (15.0 vs 17.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. 성인의 수학 sells 2 one-off in-app purchases and Compendium Lab sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

성인의 수학 ships an update weekly, Compendium Lab every 4 weeks. The most recent releases landed on October 31, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | 성인의 수학 | Compendium Lab |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Every 4 weeks |
| Size | 48 MB | 106 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Mijin Kim](https://appshunter.io/developer/1717382242) | [Byoungho Kim](https://appshunter.io/developer/1888452963) |

## What reviewers say

### 성인의 수학

[App page](https://appshunter.io/ios/app/id6782822659)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 힌트쿠폰 10개 | $1.99 | one-time |
| 광고 제거 | $3.99 | one-time |


### Compendium Lab

[App page](https://appshunter.io/ios/app/compendium-lab-math-and-ai/id6791996424)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Compendium Lab Pro | $5.99 | one-time |


## Frequently asked questions

### Is 성인의 수학 free?

성인의 수학 is free to download, with in-app purchases available.

### Is Compendium Lab free?

Compendium Lab is free to download, with in-app purchases available.

### Do 성인의 수학 or Compendium Lab have ads?

성인의 수학 shows ads; Compendium Lab does not.

### Which is updated more often, 성인의 수학 or Compendium Lab?

성인의 수학 ships an update weekly, and Compendium Lab every 4 weeks. Most recently, 성인의 수학 was updated on October 31, 2026 and Compendium Lab on November 5, 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.*