# WILLPOWER vs Теннисный центр Дружба

The clearest difference is iOS requirement: WILLPOWER at 13.4 against Теннисный центр Дружба's 15.1. On price, update cadence, ads and in-app purchases there is nothing between them.

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

WILLPOWER ships an update every 6 weeks, Теннисный центр Дружба every 3 weeks. The most recent releases landed on October 2, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | WILLPOWER | Теннисный центр Дружба |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 3 weeks** |
| Size | 29 MB | 50 MB |
| Requires iOS | **13.4** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Fitbase](https://appshunter.io/developer/1530906929) | [Vasiliy Suvorov](https://appshunter.io/developer/1612668132) |

## What reviewers say

### WILLPOWER

[App page](https://appshunter.io/ios/app/willpower/id6444823049)

**Features:** macOS Compatibility

**In-app purchases:** none


### Теннисный центр Дружба

[App page](https://appshunter.io/ios/app/id6766533760)

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

**In-app purchases:** none


## Frequently asked questions

### Is WILLPOWER free?

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

### Is Теннисный центр Дружба free?

Теннисный центр Дружба is free to download, with no in-app purchases.

### Do WILLPOWER or Теннисный центр Дружба have ads?

Neither WILLPOWER nor Теннисный центр Дружба shows ads.

### Which is updated more often, WILLPOWER or Теннисный центр Дружба?

WILLPOWER ships an update every 6 weeks, and Теннисный центр Дружба every 3 weeks. Most recently, WILLPOWER was updated on October 2, 2026 and Теннисный центр Дружба on October 14, 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.*