# 챌린저스 vs OntoFit

The clearest difference is rating: 챌린저스 at 4.6 against OntoFit's 2.8. 챌린저스 also leads on review sentiment (57% vs 28%) and update cadence (every 2 weeks vs every 3 months). OntoFit's advantage is ads (none vs shown) and monetization model (free vs free with in-app purchases). On price, 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.

챌린저스 holds the better App Store score, 4.6 against 2.8. That said, the two scores are not equally well evidenced: 챌린저스 has 249 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 57% of 챌린저스's written reviews are positive against 28% of OntoFit's.

챌린저스 ships an update every 2 weeks, OntoFit every 3 months. Both last shipped on November 2, 2026.

## The numbers

| Metric | 챌린저스 | OntoFit |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (249 ratings)](https://appshunter.io/ios/app/id1438855824/reviews)** | [2.8 (6 ratings)](https://appshunter.io/ios/app/ontofit/id1453150726/reviews) |
| Number of ratings | **249** | 6 |
| Positive reviews | **56.7% of reviews** | 28.3% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 2 weeks** | Every 3 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 108 MB | 125 MB |
| Requires iOS | 15.6 | **9.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [whitecube Inc.](https://appshunter.io/developer/1438817411) | [文妤 黄](https://appshunter.io/developer/1383669544) |

## 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


### OntoFit

[App page](https://appshunter.io/ios/app/ontofit/id1453150726)

This app provides detailed body composition analysis and tracks your health metrics over time. It offers personalized insights and supports multiple family users, integrating with health platforms for comprehensive health management.

**Highlights:** 13 body composition analysis, Trend charts for tracking changes, Body shaping measurements, Support for up to 24 users, Integration with Apple Health, Personalized app theme colors

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

**In-app purchases:** none


## Frequently asked questions

### Is 챌린저스 free?

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

### Is OntoFit free?

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

### Which has better reviews, 챌린저스 or OntoFit?

챌린저스 is rated higher. 챌린저스 averages 4.6 out of 5 from 249 ratings, while OntoFit averages 2.8 from 6 ratings.

### Do 챌린저스 or OntoFit have ads?

챌린저스 shows ads; OntoFit does not.

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

챌린저스 ships an update every 2 weeks, and OntoFit every 3 months. Most recently, 챌린저스 was updated on November 2, 2026 and OntoFit on November 2, 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.*