# BlackFox vs Челленджи

The clearest difference is iOS requirement: BlackFox at 13.4 against Челленджи's 26.0. 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.

## The numbers

| Metric | BlackFox | Челленджи |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | — |
| Size | 28 MB | 2 MB |
| Requires iOS | **13.4** | 26.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Fitbase](https://appshunter.io/developer/1530906929) | [Erik Salahyan](https://appshunter.io/developer/1804146208) |

## What reviewers say

### BlackFox

[App page](https://appshunter.io/ios/app/blackfox/id1607957334)

**Features:** macOS Compatibility

**In-app purchases:** none


### Челленджи

[App page](https://appshunter.io/ios/app/id6771415205)

**In-app purchases:** none


## Frequently asked questions

### Is BlackFox free?

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

### Is Челленджи free?

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

### Do BlackFox or Челленджи have ads?

Neither BlackFox nor Челленджи shows ads.

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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.*