# 박문각 Link vs AeroFocus

The clearest difference is in-app purchases: 박문각 Link at none against AeroFocus's 3. 박문각 Link also leads on iOS requirement (13.0 vs 17.0). AeroFocus's advantage is update cadence (every 2 weeks vs every 2 months). On price, ads and device support there is nothing between them.

Both are free to download. AeroFocus sells 3 in-app purchases, starting at $2.99 per month. 박문각 Link asks for nothing beyond the download.

박문각 Link ships an update every 2 months, AeroFocus every 2 weeks. The most recent releases landed on October 2, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | 박문각 Link | AeroFocus |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | — | Freemium |
| Size | 6 MB | 261 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 9+ | 4+ |
| Developer | [EDUSPA](https://appshunter.io/developer/553093861) | [YOON JIN SHIN](https://appshunter.io/developer/6780727868) |

## What reviewers say

### 박문각 Link

[App page](https://appshunter.io/ios/app/link/id1512814275)

**In-app purchases:** none


### AeroFocus

[App page](https://appshunter.io/ios/app/aerofocus-study-flight-timer/id6780727866)

Transform study sessions into engaging flights with this focus timer. Earn passport stamps for completed sessions, visualize your progress on a world map, and track your habits. Premium features offer collaborative focus and enhanced flight experiences.

**Highlights:** Gamified focus timer with flight simulation, World map visualization of completed sessions, Passport stamping and collection, Progress tracking and habit building, Lounge mode with city view, Collaborative focus sessions (beta)

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium (Monthly) | $2.99 | per month |
| Premium (Annual) | $14.99 | per year |
| Premium (Lifetime) | $19.99 | one-time |


## Frequently asked questions

### Is 박문각 Link free?

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

### Is AeroFocus free?

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

### Do 박문각 Link or AeroFocus have ads?

Neither 박문각 Link nor AeroFocus shows ads.

### Which is updated more often, 박문각 Link or AeroFocus?

박문각 Link ships an update every 2 months, and AeroFocus every 2 weeks. Most recently, 박문각 Link was updated on October 2, 2026 and AeroFocus on October 16, 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.*