# Booom Link vs 퀴즈챌린지 Shhh

The clearest difference is in-app purchases: Booom Link at none against 퀴즈챌린지 Shhh's 9. 퀴즈챌린지 Shhh's advantage is update cadence (every 4 days vs every 39 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 퀴즈챌린지 Shhh sells 9 in-app purchases, starting at $0.99 per month. Booom Link asks for nothing beyond the download.

Booom Link ships an update every 39 months, 퀴즈챌린지 Shhh every 4 days. The most recent releases landed on November 1, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Booom Link | 퀴즈챌린지 Shhh |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 39 months | **Every 4 days** |
| Size | 8 MB | 77 MB |
| Requires iOS | 15.6 | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Eun Junseok](https://appshunter.io/developer/439258050) | [JINWOOK JUNG](https://appshunter.io/developer/6773303566) |

## What reviewers say

### Booom Link

[App page](https://appshunter.io/ios/app/booom-link/id590231684)

**Features:** macOS Compatibility

**In-app purchases:** none


### 퀴즈챌린지 Shhh

[App page](https://appshunter.io/ios/app/shhh-ox/id6773303564)

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 프리미엄 월간 | $0.99 | per month |
| 프리미엄 년간 | $11.99 | per year |
| 해독키 10개 | $0.49 | one-time |
| 이벤트 해독키 50개 | $0.99 | one-time |
| 무제한 해독권 7일 | $1.99 | one-time |
| 해독키 50개 | $2.99 | one-time |
| 해독키 100개 | $4.99 | one-time |
| 무제한 해독권 30일 | $4.99 | one-time |
| 무제한 해독권 365일 | $49.99 | one-time |


## Frequently asked questions

### Is Booom Link free?

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

### Is 퀴즈챌린지 Shhh free?

퀴즈챌린지 Shhh is free to download, with in-app purchases available.

### Do Booom Link or 퀴즈챌린지 Shhh have ads?

Both Booom Link and 퀴즈챌린지 Shhh show ads.

### Which is updated more often, Booom Link or 퀴즈챌린지 Shhh?

Booom Link ships an update every 39 months, and 퀴즈챌린지 Shhh every 4 days. Most recently, Booom Link was updated on November 1, 2026 and 퀴즈챌린지 Shhh on October 31, 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.*