# PureStudy vs 챌린저스

The clearest difference is in-app purchases: 챌린저스 at none against PureStudy's 2. 챌린저스 also leads on iOS requirement (15.0 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. PureStudy sells 2 in-app purchases, starting at $1.99 per month. 챌린저스 asks for nothing beyond the download.

PureStudy ships an update every 3 days, 챌린저스 every 2 days. The most recent releases landed on October 5, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | PureStudy | 챌린저스 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/id6791399202/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 days | **Every 2 days** |
| Monetization | — | Free |
| Size | 182 MB | 157 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 9+ |
| Developer | [chanhyeok choi](https://appshunter.io/developer/1799983470) | [Aidu](https://appshunter.io/developer/1850595390) |

## What reviewers say

### PureStudy

[App page](https://appshunter.io/ios/app/purestudy-camera-focus-timer/id6766282371)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PureStudy Pro Monthly | $1.99 | per month |
| PureStudy Pro Yearly | $5.99 | per year |


### 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

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

**In-app purchases:** none


## Frequently asked questions

### Is PureStudy free?

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

### Is 챌린저스 free?

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

### Do PureStudy or 챌린저스 have ads?

Neither PureStudy nor 챌린저스 shows ads.

### Which is updated more often, PureStudy or 챌린저스?

PureStudy ships an update every 3 days, and 챌린저스 every 2 days. Most recently, PureStudy was updated on October 5, 2026 and 챌린저스 on October 10, 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.*