# CTS 라디오조이 vs 제주수학체험관

The clearest difference is update cadence: CTS 라디오조이 at every 6 weeks against 제주수학체험관's every 25 months. CTS 라디오조이 also leads on iOS requirement (12.0 vs 15.0). 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.

CTS 라디오조이 ships an update every 6 weeks, 제주수학체험관 every 25 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | CTS 라디오조이 | 제주수학체험관 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (4 ratings)](https://appshunter.io/ios/app/cts/id508255651/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 25 months |
| Monetization | Free | — |
| Size | 41 MB | 114 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CTS Network](https://appshunter.io/developer/505392718) | [AIRAR](https://appshunter.io/developer/1516949211) |

## What reviewers say

### CTS 라디오조이

[App page](https://appshunter.io/ios/app/cts/id508255651)

Listen to a wide variety of Christian radio programs, sermons, and praise music on demand. This app offers 24-hour radio channels and curated playlists for different moods and situations, all for free.

**Highlights:** Sermon podcasts, On-demand radio programs (talk, praise, sermons), 24-hour radio channels, Curated 60-minute praise music playlists, Diverse audio content from various ministries

**Features:** macOS Compatibility

**In-app purchases:** none


### 제주수학체험관

[App page](https://appshunter.io/ios/app/id1594789428)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CTS 라디오조이 free?

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

### Is 제주수학체험관 free?

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

### Do CTS 라디오조이 or 제주수학체험관 have ads?

Neither CTS 라디오조이 nor 제주수학체험관 shows ads.

### Which is updated more often, CTS 라디오조이 or 제주수학체험관?

CTS 라디오조이 ships an update every 6 weeks, and 제주수학체험관 every 25 months. Most recently, CTS 라디오조이 was updated on November 1, 2026 and 제주수학체험관 on November 3, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*