# Challenger Fit vs 31 Pilates Studio

The clearest difference is update cadence: Challenger Fit at every 5 days against 31 Pilates Studio's every 4 months. On price, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Challenger Fit ships an update every 5 days, 31 Pilates Studio every 4 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | Challenger Fit | 31 Pilates Studio |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/challenger-fit/id6759028443/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | — |
| Update frequency | **Every 5 days** | Every 4 months |
| Monetization | Free | — |
| Size | 130 MB | 49 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | **iPhone** | — |
| Age rating | 12+ | 4+ |
| Developer | [Darya Davidyuk](https://appshunter.io/developer/1876431352) | [Vasiliy Suvorov](https://appshunter.io/developer/1612668132) |

## What reviewers say

### Challenger Fit

[App page](https://appshunter.io/ios/app/challenger-fit/id6759028443)

This fitness app gamifies workouts and daily activity into a motivating system. It offers challenges, progress tracking, and social features to encourage consistency and build healthier habits. Monitor your heart rate and reduce digital distractions for a more focused fitness journey.

**Highlights:** Gamified workouts and challenges, Personalized challenge creation, Step and daily activity tracking, Progress and history visualization, Digital distraction control, In-app heart rate monitoring, Social features and friend interaction

**Features:** macOS Compatibility

**In-app purchases:** none


### 31 Pilates Studio

[App page](https://appshunter.io/ios/app/31-pilates-studio/id6759158199)

**In-app purchases:** none


## Frequently asked questions

### Is Challenger Fit free?

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

### Is 31 Pilates Studio free?

31 Pilates Studio is free to download, with no in-app purchases.

### Which is updated more often, Challenger Fit or 31 Pilates Studio?

Challenger Fit ships an update every 5 days, and 31 Pilates Studio every 4 months. Most recently, Challenger Fit was updated on October 24, 2026 and 31 Pilates Studio 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.*