# Ham Radio Exam Extra vs RST Decoder

The clearest difference is ads: Ham Radio Exam Extra at none against RST Decoder's shown. Ham Radio Exam Extra also leads on review sentiment (89% vs 67%) and monetization model (free vs ad-supported). RST Decoder's advantage is rating (5.0 vs 4.6) and update cadence (every 2 months vs every 12 months). On price and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

RST Decoder holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Ham Radio Exam Extra has 58 ratings behind it against 7, so its average is the more settled of the two. Written reviews complicate that: 89% of Ham Radio Exam Extra's written reviews are positive against 67% of RST Decoder's, so the app with the better star average is not the one people write more warmly about.

Ham Radio Exam Extra ships an update every 12 months, RST Decoder every 2 months. The most recent releases landed on June 11, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | Ham Radio Exam Extra | RST Decoder |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (58 ratings)](https://appshunter.io/ios/app/ham-radio-exam-extra/id606900813/reviews) | **[5.0 (7 ratings)](https://appshunter.io/ios/app/rst-decoder/id1519587362/reviews)** |
| Number of ratings | **58** | 7 |
| Positive reviews | **88.6% of reviews** | 66.7% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 12 months | **Every 2 months** |
| Monetization | **Free** | Ad-supported |
| Size | 52 MB | 6 MB |
| Requires iOS | **9.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Roy Watson](https://appshunter.io/developer/581033712) | [koji kamogawa](https://appshunter.io/developer/1488210713) |

## What reviewers say

### Ham Radio Exam Extra

[App page](https://appshunter.io/ios/app/ham-radio-exam-extra/id606900813)

Prepare for your Extra Class FCC Amateur Radio License exam. Review official question pools, take topic-specific quizzes, and simulate the actual exam. Track your progress and find local exam sessions.

**Highlights:** Review official question pools, Take topic-specific quizzes, Simulate full license exams, Track user performance, Find local exam sessions, Follow ham radio news

**Features:** macOS Compatibility

**In-app purchases:** none


### RST Decoder

[App page](https://appshunter.io/ios/app/rst-decoder/id1519587362)

This application decodes Morse code from your microphone, acting as a practice tool to verify your keying accuracy. It offers advanced features like BPF and FFT decoders with automatic frequency and gain control, allowing for fine-tuning of reception parameters.

**Highlights:** Microphone Morse code decoding, Morse practice and keying check, BPF and FFT decoder options, Auto Frequency Detector (AFD), Auto Gain Control (AGC), Real-time CW signal display, Input signal recording/playback

**In-app purchases:** none


## Frequently asked questions

### Is Ham Radio Exam Extra free?

Ham Radio Exam Extra is free to download, with no in-app purchases.

### Is RST Decoder free?

RST Decoder is free to download, with no in-app purchases.

### Which has better reviews, Ham Radio Exam Extra or RST Decoder?

RST Decoder is rated higher. Ham Radio Exam Extra averages 4.6 out of 5 from 58 ratings, while RST Decoder averages 5.0 from 7 ratings.

### Do Ham Radio Exam Extra or RST Decoder have ads?

RST Decoder shows ads; Ham Radio Exam Extra does not.

### Which is updated more often, Ham Radio Exam Extra or RST Decoder?

Ham Radio Exam Extra ships an update every 12 months, and RST Decoder every 2 months. Most recently, Ham Radio Exam Extra was updated on June 11, 2026 and RST Decoder on September 8, 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.*