# 꼬북목 vs I POSTURE

The clearest difference is update cadence: I POSTURE at every 3 weeks against 꼬북목's every 6 months. 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.

꼬북목 ships an update every 6 months, I POSTURE every 3 weeks. The most recent releases landed on October 12, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | 꼬북목 | I POSTURE |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 91.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 3 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 66 MB | 148 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) | [chulwon Kim](https://appshunter.io/developer/1758245077) |

## What reviewers say

### 꼬북목

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

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

**In-app purchases:** none


### I POSTURE

[App page](https://appshunter.io/ios/app/i-posture-ai-and/id6736387040)

This app uses AI motion recognition to analyze your body shape and provide personalized posture correction and exercise solutions. It helps manage children's posture and growth, alleviate pain from long work hours, and offers tailored fitness plans for weight loss.

**Highlights:** AI motion recognition body analysis, Personalized posture correction solutions, Customized exercise plans, Body balance assessment, Skeletal simulation, Progress tracking

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

**In-app purchases:** none


## Frequently asked questions

### Is 꼬북목 free?

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

### Is I POSTURE free?

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

### Do 꼬북목 or I POSTURE have ads?

Neither 꼬북목 nor I POSTURE shows ads.

### Which is updated more often, 꼬북목 or I POSTURE?

꼬북목 ships an update every 6 months, and I POSTURE every 3 weeks. Most recently, 꼬북목 was updated on October 12, 2026 and I POSTURE on October 15, 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.*