# 애국시계 vs 블루스카이 클라이언트

The clearest difference is update cadence: 블루스카이 클라이언트 at every 4 days against 애국시계's every 6 weeks. 애국시계's advantage is iOS requirement (13.0 vs 17.0). 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.

애국시계 ships an update every 6 weeks, 블루스카이 클라이언트 every 4 days. The most recent releases landed on September 30, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | 애국시계 | 블루스카이 클라이언트 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 6 weeks | **Every 4 days** |
| Size | 35 MB | 242 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Paul Kim](https://appshunter.io/developer/1481428821) | [BreezyMind](https://appshunter.io/developer/1811255441) |

## What reviewers say

### 애국시계

[App page](https://appshunter.io/ios/app/id6467765916)

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

**In-app purchases:** none


### 블루스카이 클라이언트

[App page](https://appshunter.io/ios/app/blacksky/id6792806847)

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

**In-app purchases:** none


## Frequently asked questions

### Is 애국시계 free?

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

### Is 블루스카이 클라이언트 free?

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

### Do 애국시계 or 블루스카이 클라이언트 have ads?

Both 애국시계 and 블루스카이 클라이언트 show ads.

### Which is updated more often, 애국시계 or 블루스카이 클라이언트?

애국시계 ships an update every 6 weeks, and 블루스카이 클라이언트 every 4 days. Most recently, 애국시계 was updated on September 30, 2026 and 블루스카이 클라이언트 on October 9, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*