# SWLtools vs EMF Detector

The clearest difference is price: EMF Detector at Free against SWLtools's $3.99. SWLtools's advantage is in-app purchases (none vs 1). On ads, device support and iOS requirement there is nothing between them.

EMF Detector is free to download; SWLtools costs $3.99 up front. EMF Detector sells 1 one-off in-app purchase. SWLtools asks for nothing beyond the download.

## The numbers

| Metric | SWLtools | EMF Detector |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Monetization | Paid | — |
| Size | 5 MB | 3 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Stefano Rampazzo](https://appshunter.io/developer/396660919) | [David Elam](https://appshunter.io/developer/992797875) |

## What reviewers say

### SWLtools

[App page](https://appshunter.io/ios/app/swltools/id6618146941)

Enhance your shortwave listening with this app that decodes on-air text modes like Morse, RTTY, and WEFAX. It also features spectrum analysis, audio recording, and is optimized for portable use with specific receivers.

**Highlights:** Decode Morse, RTTY, WEFAX, and ACARS, Real-time spectrum and spectrogram display, Audio recording and storage, Save and share decoded text, Optimized for Belka receiver, ACARS position mapping

**In-app purchases:** none


### EMF Detector

[App page](https://appshunter.io/ios/app/emf-detector-vectorscope/id6794047874)

**Features:** macOS Compatibility, Apple Watch app

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Unlock | $5.99 | one-time |


## Frequently asked questions

### Is SWLtools free?

SWLtools costs $3.99, with no in-app purchases.

### Is EMF Detector free?

EMF Detector is free to download, with in-app purchases available.

### Do SWLtools or EMF Detector have ads?

Neither SWLtools nor EMF Detector 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.*