# 썬데이 사장님 vs FoundOne

The clearest difference is update cadence: 썬데이 사장님 at every 10 days against FoundOne's every 5 weeks. 썬데이 사장님 also leads on device support (3 vs 1) and iOS requirement (15.0 vs 18.0). On price, ads 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.

썬데이 사장님 ships an update every 10 days, FoundOne every 5 weeks. Both last shipped on October 31, 2026.

## The numbers

| Metric | 썬데이 사장님 | FoundOne |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 5 weeks |
| Size | 6 MB | 43 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [mingyeom Shin](https://appshunter.io/developer/1881560358) | [yeong jun lee](https://appshunter.io/developer/1880810966) |

## What reviewers say

### 썬데이 사장님

[App page](https://appshunter.io/ios/app/id6759908157)

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

**In-app purchases:** none


### FoundOne

[App page](https://appshunter.io/ios/app/foundone/id6802198801)

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

**In-app purchases:** none


## Frequently asked questions

### Is 썬데이 사장님 free?

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

### Is FoundOne free?

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

### Do 썬데이 사장님 or FoundOne have ads?

Neither 썬데이 사장님 nor FoundOne shows ads.

### Which is updated more often, 썬데이 사장님 or FoundOne?

썬데이 사장님 ships an update every 10 days, and FoundOne every 5 weeks. Most recently, 썬데이 사장님 was updated on October 31, 2026 and FoundOne on October 31, 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.*