# Electromag vs RYURAKU

The clearest difference is price: RYURAKU at Free against Electromag's $1.99. RYURAKU also leads on update cadence (every 3 weeks vs every 9 months) and iOS requirement (15.0 vs 18.6). Electromag's advantage is ads (none vs shown). On in-app purchases and device support there is nothing between them.

RYURAKU is free to download; Electromag costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Electromag ships an update every 9 months, RYURAKU every 3 weeks. Both last shipped on November 13, 2026.

## The numbers

| Metric | Electromag | RYURAKU |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/electromag/id404649255/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 45.5% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 9 months | **Every 3 weeks** |
| Monetization | Paid | — |
| Size | 20 MB | 26 MB |
| Requires iOS | 18.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Xavier Daxhelet](https://appshunter.io/developer/339056993) | [Fuji Bit Inc.](https://appshunter.io/developer/1874205957) |

## What reviewers say

### Electromag

[App page](https://appshunter.io/ios/app/electromag/id404649255)

Explore fundamental concepts of electromagnetism through interactive animations and detailed explanations. This app supports high school and university courses, covering electrostatics, electric current, magnetism, and Maxwell's equations with visual aids.

**Highlights:** Basic equations memorandum, 20+ electromagnetism animations, 3D animations, Covers electrostatics, electric current, magnetism, and electromagnetism, Includes physical constants, Classroom projection support

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

**In-app purchases:** none


### RYURAKU

[App page](https://appshunter.io/ios/app/ryuraku-fluid-dynamics/id6760613893)

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

**In-app purchases:** none


## Frequently asked questions

### Is Electromag free?

Electromag costs $1.99, with no in-app purchases.

### Is RYURAKU free?

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

### Do Electromag or RYURAKU have ads?

RYURAKU shows ads; Electromag does not.

### Which is updated more often, Electromag or RYURAKU?

Electromag ships an update every 9 months, and RYURAKU every 3 weeks. Most recently, Electromag was updated on November 13, 2026 and RYURAKU on November 13, 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.*