# 꼬북목 vs Neck

The clearest difference is in-app purchases: 꼬북목 at none against Neck's 1. Neck's advantage is update cadence (weekly vs every 6 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Neck sells 1 in-app purchase, starting at $0.99 per month. 꼬북목 asks for nothing beyond the download.

꼬북목 ships an update every 6 months, Neck weekly. The most recent releases landed on September 26, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | 꼬북목 | Neck |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 72.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Weekly** |
| Monetization | — | Freemium |
| Size | 66 MB | 54 MB |
| Requires iOS | 15.5 | **14.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [minhyun lee](https://appshunter.io/developer/1729065316) | [Yeong Sang Moon](https://appshunter.io/developer/1757768981) |

## What reviewers say

### 꼬북목

[App page](https://appshunter.io/ios/app/id6477348702)

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

**In-app purchases:** none


### Neck

[App page](https://appshunter.io/ios/app/neck-life/id6553973734)

This app monitors your neck posture in real-time using AirPods sensors. It sends notifications if it detects harmful positions, helping you maintain better posture while working. You can customize sensitivity and notification delays for personalized alerts.

**Highlights:** Real-time neck posture monitoring with AirPods, Harmful posture detection alerts, Customizable sensitivity settings, Adjustable notification delay, Ad-free premium experience

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| NeckLife Premium | $0.99 | per month |


## Frequently asked questions

### Is 꼬북목 free?

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

### Is Neck free?

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

### Do 꼬북목 or Neck have ads?

Neither 꼬북목 nor Neck shows ads.

### Which is updated more often, 꼬북목 or Neck?

꼬북목 ships an update every 6 months, and Neck weekly. Most recently, 꼬북목 was updated on September 26, 2026 and Neck on October 4, 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.*