# 아임스터디 vs 저별뭐야?

The clearest difference is ads: 아임스터디 at none against 저별뭐야?'s shown. 저별뭐야?'s advantage is update cadence (fortnightly vs every 3 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

아임스터디 ships an update every 3 months, 저별뭐야? fortnightly. The most recent releases landed on October 5, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | 아임스터디 | 저별뭐야? |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Fortnightly** |
| Size | 134 MB | 23 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tobesmart,inc](https://appshunter.io/developer/1449538915) | [jooyoung kim](https://appshunter.io/developer/1868557657) |

## What reviewers say

### 아임스터디

[App page](https://appshunter.io/ios/app/id1505439960)

**In-app purchases:** none


### 저별뭐야?

[App page](https://appshunter.io/ios/app/id6777901721)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 아임스터디 free?

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

### Is 저별뭐야? free?

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

### Do 아임스터디 or 저별뭐야? have ads?

저별뭐야? shows ads; 아임스터디 does not.

### Which is updated more often, 아임스터디 or 저별뭐야??

아임스터디 ships an update every 3 months, and 저별뭐야? fortnightly. Most recently, 아임스터디 was updated on October 5, 2026 and 저별뭐야? 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.*