# 리더스 스터디(Leaders Study) vs 챌린저스

The clearest difference is update cadence: 챌린저스 at every 2 days against 리더스 스터디(Leaders Study)'s every 3 months. 리더스 스터디(Leaders Study)'s advantage is iOS requirement (13.0 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.

리더스 스터디(Leaders Study) ships an update every 3 months, 챌린저스 every 2 days. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | 리더스 스터디(Leaders Study) | 챌린저스 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/id6791399202/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 days** |
| Monetization | — | Free |
| Size | 134 MB | 161 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 9+ |
| Developer | [Tobesmart,inc](https://appshunter.io/developer/1449538915) | [AtlasEdu](https://appshunter.io/developer/6825153850) |

## What reviewers say

### 리더스 스터디(Leaders Study)

[App page](https://appshunter.io/ios/app/leaders-study/id1479362963)

**In-app purchases:** none


### 챌린저스

[App page](https://appshunter.io/ios/app/id6791399202)

Manage all aspects of your academic life, from assignments and tests to reviewing mistakes. This smart learning app helps students stay organized and track their progress effectively. Receive timely notifications for important updates and deadlines.

**Highlights:** Assignment management with deadline reminders, In-app problem solving with auto-save, Take tests and quizzes with instant results, Automatic incorrect answer notebook, Learning progress reports, Push notifications for updates

**In-app purchases:** none


## Frequently asked questions

### Is 리더스 스터디(Leaders Study) free?

리더스 스터디(Leaders Study) is free to download, with no in-app purchases.

### Is 챌린저스 free?

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

### Do 리더스 스터디(Leaders Study) or 챌린저스 have ads?

Neither 리더스 스터디(Leaders Study) nor 챌린저스 shows ads.

### Which is updated more often, 리더스 스터디(Leaders Study) or 챌린저스?

리더스 스터디(Leaders Study) ships an update every 3 months, and 챌린저스 every 2 days. Most recently, 리더스 스터디(Leaders Study) was updated on October 25, 2026 and 챌린저스 on October 24, 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.*