# 스테이지나인 vs 모무스터디

The clearest difference is update cadence: 스테이지나인 at every 2 weeks against 모무스터디's every 2 months. 모무스터디's advantage is iOS requirement (12.1 vs 14.0). 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.

스테이지나인 ships an update every 2 weeks, 모무스터디 every 2 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | 스테이지나인 | 모무스터디 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 20.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 2 months |
| Size | 3 MB | 1 MB |
| Requires iOS | 14.0 | **12.1** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Stage9 Corp.](https://appshunter.io/developer/1437057901) | [디벨로퍼그룹](https://appshunter.io/developer/1550016051) |

## What reviewers say

### 스테이지나인

[App page](https://appshunter.io/ios/app/stage9/id1437057902)

**Features:** macOS Compatibility

**In-app purchases:** none


### 모무스터디

[App page](https://appshunter.io/ios/app/id1550016049)

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

**In-app purchases:** none


## Frequently asked questions

### Is 스테이지나인 free?

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

### Is 모무스터디 free?

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

### Do 스테이지나인 or 모무스터디 have ads?

Neither 스테이지나인 nor 모무스터디 shows ads.

### Which is updated more often, 스테이지나인 or 모무스터디?

스테이지나인 ships an update every 2 weeks, and 모무스터디 every 2 months. Most recently, 스테이지나인 was updated on November 2, 2026 and 모무스터디 on November 3, 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.*