# 세브란스 내과 vs 블루닥

The clearest difference is update cadence: 블루닥 at every 2 weeks against 세브란스 내과's every 12 months. 세브란스 내과's advantage is iOS requirement (8.0 vs 13.0). On price, ads, 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.

세브란스 내과 ships an update every 12 months, 블루닥 every 2 weeks. The most recent releases landed on October 10, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | 세브란스 내과 | 블루닥 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 2 weeks** |
| Size | 2 MB | 34 MB |
| Requires iOS | **8.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Yonsei University Health System](https://appshunter.io/developer/407763668) | [(주)블루엠텍](https://appshunter.io/developer/1598078675) |

## What reviewers say

### 세브란스 내과

[App page](https://appshunter.io/ios/app/id1290077876)

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

**In-app purchases:** none


### 블루닥

[App page](https://appshunter.io/ios/app/id6484506612)

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

**In-app purchases:** none


## Frequently asked questions

### Is 세브란스 내과 free?

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

### Is 블루닥 free?

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

### Do 세브란스 내과 or 블루닥 have ads?

Neither 세브란스 내과 nor 블루닥 shows ads.

### Which is updated more often, 세브란스 내과 or 블루닥?

세브란스 내과 ships an update every 12 months, and 블루닥 every 2 weeks. Most recently, 세브란스 내과 was updated on October 10, 2026 and 블루닥 on October 7, 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.*