# Greyp vs OpenSwim

The clearest difference is iOS requirement: Greyp at 13.0 against OpenSwim's 15.0. 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 | Greyp | OpenSwim |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Size | 124 MB | 13 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Porsche e-bike performance d.o.o.](https://appshunter.io/developer/1350243460) | [Jaco Rossouw](https://appshunter.io/developer/1895762288) |

## What reviewers say

### Greyp

[App page](https://appshunter.io/ios/app/greyp/id1483455885)

**Features:** Vision Pro support

**In-app purchases:** none


### OpenSwim

[App page](https://appshunter.io/ios/app/openswim/id6764396327)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Greyp free?

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

### Is OpenSwim free?

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

### Do Greyp or OpenSwim have ads?

Neither Greyp nor OpenSwim 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.*