# 블루닥 vs Apnotrack

The clearest difference is update cadence: 블루닥 at every 2 weeks against Apnotrack's monthly. 블루닥 also leads on iOS requirement (13.0 vs 16.0). 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.

블루닥 ships an update every 2 weeks, Apnotrack monthly. The most recent releases landed on October 7, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | 블루닥 | Apnotrack |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/apnotrack/id6755224222/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 60.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Monthly |
| Monetization | — | Free |
| Size | 34 MB | 66 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [(주)블루엠텍](https://appshunter.io/developer/1598078675) | [Asleep Inc.](https://appshunter.io/developer/1612023690) |

## What reviewers say

### 블루닥

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

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

**In-app purchases:** none


### Apnotrack

[App page](https://appshunter.io/ios/app/apnotrack/id6755224222)

This app uses AI to analyze breathing sounds from smart devices to screen for moderate-to-severe sleep apnea. It offers specialized sleep analysis and identifies areas for potential improvement, supporting physicians in further diagnostic decisions.

**Highlights:** AI-powered breathing sound analysis, Sleep apnea screening, Specialized sleep analysis, Identifies areas for improvement, Supports physician diagnostics

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

**In-app purchases:** none


## Frequently asked questions

### Is 블루닥 free?

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

### Is Apnotrack free?

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

### Do 블루닥 or Apnotrack have ads?

Neither 블루닥 nor Apnotrack shows ads.

### Which is updated more often, 블루닥 or Apnotrack?

블루닥 ships an update every 2 weeks, and Apnotrack monthly. Most recently, 블루닥 was updated on October 7, 2026 and Apnotrack on October 10, 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.*