# C vs 키온버스

The clearest difference is iOS requirement: 키온버스 at 12.0 against C's 15.0. On price, update cadence, 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.

C ships an update every 9 days, 키온버스 every 3 weeks. Both last shipped on September 16, 2026.

## The numbers

| Metric | C | 키온버스 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 3 weeks |
| Size | 204 MB | 1.3 GB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Korea Campus Crusade for Christ](https://appshunter.io/developer/434814361) | [PLAYPARK Co., Ltd](https://appshunter.io/developer/1566839730) |

## What reviewers say

### C

[App page](https://appshunter.io/ios/app/c-on/id1601067422)

**In-app purchases:** none


### 키온버스

[App page](https://appshunter.io/ios/app/id6444099413)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is C free?

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

### Is 키온버스 free?

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

### Do C or 키온버스 have ads?

Neither C nor 키온버스 shows ads.

### Which is updated more often, C or 키온버스?

C ships an update every 9 days, and 키온버스 every 3 weeks. Most recently, C was updated on September 16, 2026 and 키온버스 on September 16, 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.*