# Motion vs Phylum Echinodermata

The clearest difference is price: Phylum Echinodermata at Free against Motion's $0.99. Phylum Echinodermata also leads on device support (3 vs 1). On ads, in-app purchases and iOS requirement there is nothing between them.

Phylum Echinodermata is free to download; Motion costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Motion | Phylum Echinodermata |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 34 months | — |
| Size | 58 MB | 40 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [www.ajaxmediatech.com](https://appshunter.io/developer/973768003) | [Science Education Institute](https://appshunter.io/developer/1439710468) |

## What reviewers say

### Motion

[App page](https://appshunter.io/ios/app/motion-physics/id1139665168)

**Features:** macOS Compatibility

**In-app purchases:** none


### Phylum Echinodermata

[App page](https://appshunter.io/ios/app/phylum-echinodermata/id6743053421)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Motion free?

Motion costs $0.99, with no in-app purchases.

### Is Phylum Echinodermata free?

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

### Do Motion or Phylum Echinodermata have ads?

Neither Motion nor Phylum Echinodermata 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.*