# Idol Chart vs 트롯스타

The clearest difference is review sentiment: 트롯스타 at 67% against Idol Chart's 17%. 트롯스타 also leads on update cadence (every 2 months vs every 36 months) and iOS requirement (13.0 vs 15.6). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Idol Chart sells 5 one-off in-app purchases and 트롯스타 sells 7 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

Idol Chart ships an update every 36 months, 트롯스타 every 2 months. The most recent releases landed on August 28, 2026 and August 1, 2026 respectively.

## The numbers

| Metric | Idol Chart | 트롯스타 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (3 ratings)](https://appshunter.io/ios/app/idol-chart/id1462870922/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 16.7% of reviews | **66.7% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 36 months | **Every 2 months** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 4 MB | 75 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [CLOMedia Co.,Ltd](https://appshunter.io/developer/1462870921) | [JUUN LEE](https://appshunter.io/developer/1652153679) |

## What reviewers say

### Idol Chart

[App page](https://appshunter.io/ios/app/idol-chart/id1462870922)

This app analyzes K-pop idol group popularity using data from music, albums, broadcasts, social media, and portals. It provides rankings, fan ratings, expert analysis, new music news, and a community forum.

**Highlights:** Comprehensive idol popularity analysis, Fan-created rating rankings, Expert music analysis reports, New music and artist news, Community forum for fans, Weekly trending idol identification

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 11LP | $0.99 | one-time |
| 23LP | $1.99 | one-time |
| 35LP | $2.99 | one-time |
| 54LP | $4.99 | one-time |
| 100LP | $8.99 | one-time |


### 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 |


## Frequently asked questions

### Is Idol Chart free?

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

### Is 트롯스타 free?

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

### Do Idol Chart or 트롯스타 have ads?

Both Idol Chart and 트롯스타 show ads.

### Which is updated more often, Idol Chart or 트롯스타?

Idol Chart ships an update every 36 months, and 트롯스타 every 2 months. Most recently, Idol Chart was updated on August 28, 2026 and 트롯스타 on August 1, 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.*