# KOYAF vs chamcharmbio(ccbio)

The clearest difference is update cadence: KOYAF at every 3 weeks against chamcharmbio(ccbio)'s every 15 months. KOYAF also leads on device support. On price, in-app purchases 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.

KOYAF ships an update every 3 weeks, chamcharmbio(ccbio) every 15 months. The most recent releases landed on June 11, 2026 and June 20, 2026 respectively.

## The numbers

| Metric | KOYAF | chamcharmbio(ccbio) |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | — |
| Update frequency | **Every 3 weeks** | Every 15 months |
| Size | 122 MB | 71 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | **iPhone, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [MYUNG JA LEE](https://appshunter.io/developer/1721080950) | [Chamcharm Bio Co.,Ltd](https://appshunter.io/developer/1802143005) |

## What reviewers say

### KOYAF

[App page](https://appshunter.io/ios/app/koyaf/id1661505537)

**Features:** macOS Compatibility

**In-app purchases:** none


### chamcharmbio(ccbio)

[App page](https://appshunter.io/ios/app/chamcharmbioccbio/id6743309958)

**In-app purchases:** none


## Frequently asked questions

### Is KOYAF free?

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

### Is chamcharmbio(ccbio) free?

chamcharmbio(ccbio) is free to download, with no in-app purchases.

### Which is updated more often, KOYAF or chamcharmbio(ccbio)?

KOYAF ships an update every 3 weeks, and chamcharmbio(ccbio) every 15 months. Most recently, KOYAF was updated on June 11, 2026 and chamcharmbio(ccbio) on June 20, 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.*