# WorldClass Сургут vs BlackFox

The clearest difference is update cadence: BlackFox at every 3 weeks against WorldClass Сургут's every 4 months. WorldClass Сургут's advantage is iOS requirement (8.1 vs 13.4). 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.

WorldClass Сургут ships an update every 4 months, BlackFox every 3 weeks. The most recent releases landed on October 2, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | WorldClass Сургут | BlackFox |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 2 MB | 28 MB |
| Requires iOS | **8.1** | 13.4 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Eugene Lysenko](https://appshunter.io/developer/941355435) | [Fitbase](https://appshunter.io/developer/1530906929) |

## What reviewers say

### WorldClass Сургут

[App page](https://appshunter.io/ios/app/worldclass/id941355436)

This app serves as a client for a fitness club's database, providing members with club news, event schedules, and promotions. It allows users to create personalized workout plans based on the current schedule and manage reminders in their phone's calendar. Users can also easily contact club administration and technical support.

**Highlights:** Club news and event updates, Personalized workout plan creation, System calendar reminders, Direct contact with administration, Access to promotions

**Features:** macOS Compatibility

**In-app purchases:** none


### BlackFox

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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is WorldClass Сургут free?

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

### Is BlackFox free?

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

### Do WorldClass Сургут or BlackFox have ads?

Neither WorldClass Сургут nor BlackFox shows ads.

### Which is updated more often, WorldClass Сургут or BlackFox?

WorldClass Сургут ships an update every 4 months, and BlackFox every 3 weeks. Most recently, WorldClass Сургут was updated on October 2, 2026 and BlackFox on September 27, 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.*