# MorseLight Pro vs E2M (Engineer with EM waves)

The clearest difference is in-app purchases: MorseLight Pro at none against E2M (Engineer with EM waves)'s 3. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. E2M (Engineer with EM waves) sells 3 in-app purchases, starting at $7.99 per month. MorseLight Pro asks for nothing beyond the download.

## The numbers

| Metric | MorseLight Pro | E2M (Engineer with EM waves) |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/morselight-pro/id6741189142/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Fortnightly |
| Monetization | **Free** | Freemium |
| Size | 4 MB | 80 MB |
| Requires iOS | 18.2 | **17.6** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Haochen Zhu](https://appshunter.io/developer/1793494252) | [ComPhysics](https://appshunter.io/developer/1821978540) |

## What reviewers say

### MorseLight Pro

[App page](https://appshunter.io/ios/app/morselight-pro/id6741189142)

Master Morse code using your device's flashlight, vibration, and sound. Ideal for emergency preparedness and educational purposes, it offers a widget for convenient home screen learning.

**Highlights:** Morse code learning, Flashlight signaling, Vibration feedback, Sound output, Home screen widget, Emergency preparedness tool

**Features:** macOS Compatibility

**In-app purchases:** none


### E2M (Engineer with EM waves)

[App page](https://appshunter.io/ios/app/e2m-engineer-with-em-waves/id6747601796)

This app is a 1D electromagnetic and optics simulator for iOS devices. It allows engineers, researchers, and students to analyze layered structures, extract photonic bands, and simulate optical properties with advanced polarization control and material libraries.

**Highlights:** 1D EM solver for layered structures, Reflectance, Transmittance, Absorptance analysis, Arbitrary polarization state analysis, Photonic band structure extraction, Integrated material library (refractiveindex.info), User-defined materials, Data export (.csv, figures)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Standard: 1 month subscription | $7.99 | per month |
| Standard: 1 year subscription | $79.99 | per year |
| E2M Lifetime License | $239.99 | one-time |


## Frequently asked questions

### Is MorseLight Pro free?

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

### Is E2M (Engineer with EM waves) free?

E2M (Engineer with EM waves) is free to download, with in-app purchases available.

### Do MorseLight Pro or E2M (Engineer with EM waves) have ads?

Neither MorseLight Pro nor E2M (Engineer with EM waves) 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.*