# KAGAKU vs Motion Physics Gallery

The clearest difference is ads: Motion Physics Gallery at none against KAGAKU's shown. Motion Physics Gallery also leads on update cadence (every 5 weeks vs every 3 months). KAGAKU's advantage is iOS requirement (15.0 vs 26.0). 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.

KAGAKU ships an update every 3 months, Motion Physics Gallery every 5 weeks. The most recent releases landed on October 29, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | KAGAKU | Motion Physics Gallery |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Every 5 weeks** |
| Size | 29 MB | 5 MB |
| Requires iOS | **15.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Fuji Bit Inc.](https://appshunter.io/developer/1874205957) | [Naoki Chiba](https://appshunter.io/developer/1895372512) |

## What reviewers say

### KAGAKU

[App page](https://appshunter.io/ios/app/kagaku/id6763080354)

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

**In-app purchases:** none


### Motion Physics Gallery

[App page](https://appshunter.io/ios/app/motion-physics-gallery/id6799315138)

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

**In-app purchases:** none


## Frequently asked questions

### Is KAGAKU free?

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

### Is Motion Physics Gallery free?

Motion Physics Gallery is free to download, with no in-app purchases.

### Do KAGAKU or Motion Physics Gallery have ads?

KAGAKU shows ads; Motion Physics Gallery does not.

### Which is updated more often, KAGAKU or Motion Physics Gallery?

KAGAKU ships an update every 3 months, and Motion Physics Gallery every 5 weeks. Most recently, KAGAKU was updated on October 29, 2026 and Motion Physics Gallery on October 31, 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.*