# Electromag vs Pendulum Lab

The clearest difference is in-app purchases: Electromag at none against Pendulum Lab's 1. Pendulum Lab's advantage is update cadence (every 5 weeks vs every 9 months) and price ($0.99 vs $1.99). On ads and device support there is nothing between them.

Electromag costs $1.99 and Pendulum Lab $0.99 up front. Pendulum Lab sells 1 one-off in-app purchase. Electromag asks for nothing beyond the download.

Electromag ships an update every 9 months, Pendulum Lab every 5 weeks. The most recent releases landed on September 26, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Electromag | Pendulum Lab |
| --- | --- | --- |
| Price | $1.99 | **$0.99** |
| 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** | Yes |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 5 weeks** |
| Monetization | Paid | — |
| Size | 20 MB | 4 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) | [hyeonsu jeong](https://appshunter.io/developer/1628268684) |

## 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


### Pendulum Lab

[App page](https://appshunter.io/ios/app/pendulum-lab/id6661026555)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Triple Pendulum Unlock | $0.99 | one-time |


## Frequently asked questions

### Is Electromag free?

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

### Is Pendulum Lab free?

Pendulum Lab costs $0.99, and also offers in-app purchases.

### Do Electromag or Pendulum Lab have ads?

Neither Electromag nor Pendulum Lab shows ads.

### Which is updated more often, Electromag or Pendulum Lab?

Electromag ships an update every 9 months, and Pendulum Lab every 5 weeks. Most recently, Electromag was updated on September 26, 2026 and Pendulum Lab on September 17, 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.*