# GraviPop vs Challenge Sort

The clearest difference is ads: GraviPop at none against Challenge Sort's shown. GraviPop also leads on iOS requirement (12.0 vs 15.0). On price, 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 | GraviPop | Challenge Sort |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | — | Fortnightly |
| Size | 47 MB | 151 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Evgenii Petrov](https://appshunter.io/developer/1778767431) | [Lutfi AlBragi](https://appshunter.io/developer/1691520787) |

## What reviewers say

### GraviPop

[App page](https://appshunter.io/ios/app/gravipop/id6738086433)

**Features:** macOS Compatibility

**In-app purchases:** none


### Challenge Sort

[App page](https://appshunter.io/ios/app/challenge-sort-mind-relax/id6781243727)

**In-app purchases:** none


## Frequently asked questions

### Is GraviPop free?

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

### Is Challenge Sort free?

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

### Do GraviPop or Challenge Sort have ads?

Challenge Sort shows ads; GraviPop does not.

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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.*