# 잘키(키즈런) vs M.M.S

The clearest difference is update cadence: 잘키(키즈런) at every 5 weeks against M.M.S's every 3 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.

잘키(키즈런) ships an update every 5 weeks, M.M.S every 3 months. The most recent releases landed on October 27, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | 잘키(키즈런) | M.M.S |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 3 months |
| Monetization | Free | — |
| Size | 22 MB | 65 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [(주)잘큼](https://appshunter.io/developer/1513247271) | [(주)트루벨류](https://appshunter.io/developer/1523600320) |

## What reviewers say

### 잘키(키즈런)

[App page](https://appshunter.io/ios/app/id1513247272)

This app offers a variety of performance-based activities for children at different locations, including races and museum exhibits. Parents can purchase passes and make reservations directly through the app, and receive photos and videos of their child's participation.

**Highlights:** Diverse performance concepts, Multiple event locations, In-app pass purchase, Easy reservation system, Photos and videos of participation

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

**In-app purchases:** none


### M.M.S

[App page](https://appshunter.io/ios/app/mms/id6761164085)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 잘키(키즈런) free?

잘키(키즈런) is free to download, with no in-app purchases.

### Is M.M.S free?

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

### Do 잘키(키즈런) or M.M.S have ads?

Neither 잘키(키즈런) nor M.M.S shows ads.

### Which is updated more often, 잘키(키즈런) or M.M.S?

잘키(키즈런) ships an update every 5 weeks, and M.M.S every 3 months. Most recently, 잘키(키즈런) was updated on October 27, 2026 and M.M.S on October 5, 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.*