# PSK31 vs IWM Mobile

The clearest difference is review sentiment: IWM Mobile at 100% against PSK31's 52%. IWM Mobile also leads on price (Free vs $2.99) and rating (5.0 vs 3.6). PSK31's advantage is ratings volume (15 vs 1) and iOS requirement (6.0 vs 15.1). On ads, in-app purchases and device support there is nothing between them.

IWM Mobile is free to download; PSK31 costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

IWM Mobile holds the better App Store score, 5.0 against 3.6. That said, the two scores are not equally well evidenced: PSK31 has 15 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 52% of PSK31's written reviews are positive against 100% of IWM Mobile's.

PSK31 ships an update every 18 months, IWM Mobile every 3 weeks. The most recent releases landed on October 19, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | PSK31 | IWM Mobile |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | [3.6 (15 ratings)](https://appshunter.io/ios/app/psk31/id385619882/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/iwm-mobile/id6744467583/reviews)** |
| Number of ratings | **15** | 1 |
| Positive reviews | 52.2% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 18 months | **Every 3 weeks** |
| Monetization | Paid | **Free** |
| Size | 1 MB | 42 MB |
| Requires iOS | **6.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Black Cat Systems](https://appshunter.io/developer/301047032) | [Edward Sanchez](https://appshunter.io/developer/1807849697) |

## What reviewers say

### PSK31

[App page](https://appshunter.io/ios/app/psk31/id385619882)

Decode and view ham radio PSK31 transmissions directly on your iPad. Tune into specific signals with a tap and see the decoded text, all without needing a separate computer. Features a waterfall display to visualize the audio spectrum.

**Highlights:** Monitor PSK31 transmissions, View decoded text, Waterfall display of audio spectrum, Tap to tune into signals, No computer required

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

**In-app purchases:** none


### IWM Mobile

[App page](https://appshunter.io/ios/app/iwm-mobile/id6744467583)

Engage with a global ministry through this app. Listen to podcasts, access the latest content, contribute financially, participate in discussions, and submit prayer requests. Build a stronger faith and connect with an international community.

**Highlights:** Listen to podcast episodes, Access latest content, Make donations, Join discussions, Offer prayer intentions, Connect with global ministry

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

**In-app purchases:** none


## Frequently asked questions

### Is PSK31 free?

PSK31 costs $2.99, with no in-app purchases.

### Is IWM Mobile free?

IWM Mobile is free to download, with no in-app purchases.

### Which has better reviews, PSK31 or IWM Mobile?

IWM Mobile is rated higher. PSK31 averages 3.6 out of 5 from 15 ratings, while IWM Mobile averages 5.0 from 1 ratings.

### Do PSK31 or IWM Mobile have ads?

Neither PSK31 nor IWM Mobile shows ads.

### Which is updated more often, PSK31 or IWM Mobile?

PSK31 ships an update every 18 months, and IWM Mobile every 3 weeks. Most recently, PSK31 was updated on October 19, 2026 and IWM Mobile on October 12, 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.*