# 챌린저스 vs 온돌

The clearest difference is in-app purchases: 챌린저스 at none against 온돌's 1. 온돌's advantage is ads (none vs shown) and update cadence (every 5 days vs every 2 weeks). On price, device support and iOS requirement there is nothing between them.

Both are free to download. 온돌 sells 1 in-app purchase, starting at $17.99 per year. 챌린저스 asks for nothing beyond the download.

챌린저스 ships an update every 2 weeks, 온돌 every 5 days. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | 챌린저스 | 온돌 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (249 ratings)](https://appshunter.io/ios/app/id1438855824/reviews)** | — |
| Number of ratings | **249** | — |
| Positive reviews | 56.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | **Every 5 days** |
| Monetization | Free with in-app purchases | — |
| Size | 108 MB | 137 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [whitecube Inc.](https://appshunter.io/developer/1438817411) | [Hyun-Il Yoo](https://appshunter.io/developer/1683275732) |

## What reviewers say

### 챌린저스

[App page](https://appshunter.io/ios/app/id1438855824)

This app offers a unique shopping experience where users can get money back on purchases and participate in challenges to improve themselves. It combines smart self-management with opportunities to acquire desirable products at significant discounts or even for free.

**Highlights:** Cashback on purchases, New user discounts, Luxury beauty giveaways, Goal-based challenges with rewards, Habit formation support

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 💪 Strong motivation for habit formation
- 💰 Financial incentive for goal achievement
- 🤝 Community support for shared goals
- 📈 Improvement in daily routines
- 😊 Sense of accomplishment and pride

**What reviewers complain about**

- 🐛 Frequent app crashes/freezing
- ❌ Issues with international users (login/verification)
- 💸 Limited payment options for international users
- 📢 Excessive or repetitive notifications
- ⚠️ Intrusive advertisements

**Reported bugs**

- App crashes immediately upon opening
- App crashes when selecting foreign country code for phone number
- Authentication button crashes app on iOS 17/iPhone 15
- Cannot change country code for verification
- App crashes when selecting foreign country code

**Requested features**

- Enable international payment options (e.g., PayPal, Amex)
- Allow customization of authentication flow
- Provide more free challenges for international users
- Improve country code selection for international users
- Allow customization of certification order


### 온돌

[App page](https://appshunter.io/ios/app/id6810575845)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 병원동행 뱃지 | $17.99 | per year |


## Frequently asked questions

### Is 챌린저스 free?

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

### Is 온돌 free?

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

### Do 챌린저스 or 온돌 have ads?

챌린저스 shows ads; 온돌 does not.

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

챌린저스 ships an update every 2 weeks, and 온돌 every 5 days. Most recently, 챌린저스 was updated on October 26, 2026 and 온돌 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.*