# 트롯스타 vs OBS라디오

The clearest difference is in-app purchases: OBS라디오 at none against 트롯스타's 7. OBS라디오 also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. 트롯스타 sells 7 in-app purchases, starting at $3.99 per month. OBS라디오 asks for nothing beyond the download.

트롯스타 ships an update every 2 months, OBS라디오 every 5 weeks. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | 트롯스타 | OBS라디오 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 5 weeks** |
| Monetization | Freemium | — |
| Size | 75 MB | 30 MB |
| Requires iOS | 13.0 | 13 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [JUUN LEE](https://appshunter.io/developer/1652153679) | [OBS](https://appshunter.io/developer/372152649) |

## What reviewers say

### 트롯스타

[App page](https://appshunter.io/ios/app/id6444076636)

Earn stars by shopping at partner malls and use them to vote for your favorite trot singers. Get news articles and support subway advertising events for your idols. A premium subscription offers bonus stars and features.

**Highlights:** Earn stars through shopping, Vote for trot singers, Support idol subway ads, Read news articles, Monthly premium subscription, Daily attendance bonuses

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 트롯스타 프리미엄 | $3.99 | per month |
| 트롯스타 별 10,000개 | $0.99 | one-time |
| 트롯스타 별 30,000개 | $1.99 | one-time |
| 트롯스타 별 50,000개 | $3.99 | one-time |
| 트롯스타 별 100,000개 | $7.99 | one-time |
| 트롯스타 별 300,000개 | $22.99 | one-time |
| 트롯스타 별 500,000개 | $37.99 | one-time |


### OBS라디오

[App page](https://appshunter.io/ios/app/obs/id6446837480)

**In-app purchases:** none


## Frequently asked questions

### Is 트롯스타 free?

트롯스타 is free to download, with in-app purchases available.

### Is OBS라디오 free?

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

### Do 트롯스타 or OBS라디오 have ads?

트롯스타 shows ads; OBS라디오 does not.

### Which is updated more often, 트롯스타 or OBS라디오?

트롯스타 ships an update every 2 months, and OBS라디오 every 5 weeks. Most recently, 트롯스타 was updated on October 27, 2026 and OBS라디오 on October 25, 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.*