# 힐디넥 EGG vs Mulbyul

The clearest difference is ads: 힐디넥 EGG at none against Mulbyul's shown. 힐디넥 EGG also leads on update cadence (every 9 days vs monthly) and iOS requirement (13.0 vs 26.0). Mulbyul's advantage is device support (5 vs 3). On price and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

힐디넥 EGG ships an update every 9 days, Mulbyul monthly. The most recent releases landed on October 16, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | 힐디넥 EGG | Mulbyul |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/egg/id1626041318/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 9 days** | Monthly |
| Monetization | Free | — |
| Size | 54 MB | 175 MB |
| Requires iOS | **13.0** | 26.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, Mac, Apple Watch, Vision Pro** |
| Age rating | 12+ | 12+ |
| Developer | [iSynapse](https://appshunter.io/developer/1781623101) | [InnoSquad](https://appshunter.io/developer/1708791500) |

## What reviewers say

### 힐디넥 EGG

[App page](https://appshunter.io/ios/app/egg/id1626041318)

This app pairs with a posture reminder device to help you develop better posture habits. It provides real-time posture feedback, offers stretching exercises, and allows for easy purchase of accessories.

**Highlights:** Real-time posture monitoring via IMU 6-axis sensor, Posture correction alerts, Stretching exercise videos, Accessory purchase link, Long-term posture habit development

**Features:** Vision Pro support

**In-app purchases:** none


### Mulbyul

[App page](https://appshunter.io/ios/app/mulbyul-freediving-training/id6761835713)

**Features:** Apple Watch app

**In-app purchases:** none


## Frequently asked questions

### Is 힐디넥 EGG free?

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

### Is Mulbyul free?

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

### Do 힐디넥 EGG or Mulbyul have ads?

Mulbyul shows ads; 힐디넥 EGG does not.

### Which is updated more often, 힐디넥 EGG or Mulbyul?

힐디넥 EGG ships an update every 9 days, and Mulbyul monthly. Most recently, 힐디넥 EGG was updated on October 16, 2026 and Mulbyul 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.*