# Electromag vs Lambda calculus

The clearest difference is review sentiment: Lambda calculus at 100% against Electromag's 45%. Lambda calculus also leads on price (Free vs $1.99) and iOS requirement (16.0 vs 18.6). Electromag's advantage is rating (5.0 vs 2.5). On ratings volume, ads, in-app purchases and device support there is nothing between them.

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

Electromag holds the better App Store score, 5.0 against 2.5. Both are backed by a comparable volume of ratings — 2 and 2 respectively. Written reviews complicate that: 45% of Electromag's written reviews are positive against 100% of Lambda calculus's, so the app with the better star average is not the one people write more warmly about.

## The numbers

| Metric | Electromag | Lambda calculus |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/electromag/id404649255/reviews)** | [2.5 (2 ratings)](https://appshunter.io/ios/app/lambda-calculus/id6737766234/reviews) |
| Number of ratings | 2 | 2 |
| Positive reviews | 45.5% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | — |
| Monetization | Paid | **Free** |
| Size | 20 MB | 5 MB |
| Requires iOS | 18.6 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Xavier Daxhelet](https://appshunter.io/developer/339056993) | [Sungjun Kim](https://appshunter.io/developer/1602461985) |

## 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


### Lambda calculus

[App page](https://appshunter.io/ios/app/lambda-calculus/id6737766234)

Learn the fundamentals of lambda calculus with this educational application. Gain a basic understanding of this important mathematical concept through an introductory experience.

**Highlights:** Introduction to lambda calculus, Basic understanding of concepts, Educational content

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Electromag free?

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

### Is Lambda calculus free?

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

### Which has better reviews, Electromag or Lambda calculus?

Electromag is rated higher. Electromag averages 5.0 out of 5 from 2 ratings, while Lambda calculus averages 2.5 from 2 ratings.

### Do Electromag or Lambda calculus have ads?

Neither Electromag nor Lambda calculus 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.*