# QualitySport vs Challenge 4 Change

QualitySport and Challenge 4 Change are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on September 11, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | QualitySport | Challenge 4 Change |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | Every 3 months |
| Size | 214 MB | 213 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 12+ | 12+ |
| Developer | [Universal Fitness & Personal Training GmbH](https://appshunter.io/developer/1510990117) | [Challenge 4 Change GmbH](https://appshunter.io/developer/1593236451) |

## What reviewers say

### QualitySport

[App page](https://appshunter.io/ios/app/qualitysport/id1510990118)

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

**In-app purchases:** none


### Challenge 4 Change

[App page](https://appshunter.io/ios/app/challenge-4-change/id1593236449)

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

**In-app purchases:** none


## Frequently asked questions

### Is QualitySport free?

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

### Is Challenge 4 Change free?

Challenge 4 Change is free to download, with no in-app purchases.

### Do QualitySport or Challenge 4 Change have ads?

Neither QualitySport nor Challenge 4 Change shows ads.

### Which is updated more often, QualitySport or Challenge 4 Change?

QualitySport ships an update every 3 months, and Challenge 4 Change every 3 months. Most recently, QualitySport was updated on September 11, 2026 and Challenge 4 Change on October 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.*