# SWLtools vs Prism Audio

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

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

## The numbers

| Metric | SWLtools | Prism Audio |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | — |
| Monetization | Paid | — |
| Size | 5 MB | 5 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Stefano Rampazzo](https://appshunter.io/developer/396660919) | [Chaleepa Mallawa](https://appshunter.io/developer/1359729160) |

## 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


### Prism Audio

[App page](https://appshunter.io/ios/app/prism-audio-sound-analyzer/id6780786251)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Prism Audio Pro | $4.99 | one-time |


## Frequently asked questions

### Is SWLtools free?

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

### Is Prism Audio free?

Prism Audio is free to download, with in-app purchases available.

### Do SWLtools or Prism Audio have ads?

Prism Audio shows ads; SWLtools does not.

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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.*