# RST Decoder vs Morse Trainer Pro

The clearest difference is review sentiment: RST Decoder at 67% against Morse Trainer Pro's 0%. RST Decoder also leads on rating (5.0 vs 2.0) and in-app purchases (none vs 1). Morse Trainer Pro's advantage is ads (none vs shown) and update cadence (every 3 weeks vs every 2 months). On price there is nothing between them.

Both are free to download. Morse Trainer Pro sells 1 in-app purchase, starting at $24.99 per year. RST Decoder asks for nothing beyond the download.

RST Decoder holds the better App Store score, 5.0 against 2.0. That said, the two scores are not equally well evidenced: RST Decoder has 7 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 67% of RST Decoder's written reviews are positive against 0% of Morse Trainer Pro's.

RST Decoder ships an update every 2 months, Morse Trainer Pro every 3 weeks. The most recent releases landed on October 21, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | RST Decoder | Morse Trainer Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (7 ratings)](https://appshunter.io/ios/app/rst-decoder/id1519587362/reviews)** | [2.0 (1 ratings)](https://appshunter.io/ios/app/morse-trainer-pro/id6756198226/reviews) |
| Number of ratings | **7** | 1 |
| Positive reviews | **66.7% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 6 MB | 49 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [koji kamogawa](https://appshunter.io/developer/1488210713) | [Oliver Bross](https://appshunter.io/developer/1859081127) |

## What reviewers say

### 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


### Morse Trainer Pro

[App page](https://appshunter.io/ios/app/morse-trainer-pro/id6756198226)

Master Morse code with a data-driven training system. Adaptive sessions adjust speed and difficulty, while customizable practice modes and realistic audio help build accuracy and confidence for beginners and advanced operators alike. Track progress with detailed statistics and train offline.

**Highlights:** Adaptive CW training engine, Customizable practice sessions, Realistic CW audio generation, Word, call-sign & random group training, Performance tracking & statistics, Works offline

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Morse Trainer Pro - Yearly | $24.99 | per year |


## Frequently asked questions

### Is RST Decoder free?

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

### Is Morse Trainer Pro free?

Morse Trainer Pro is free to download, with in-app purchases available.

### Which has better reviews, RST Decoder or Morse Trainer Pro?

RST Decoder is rated higher. RST Decoder averages 5.0 out of 5 from 7 ratings, while Morse Trainer Pro averages 2.0 from 1 ratings.

### Do RST Decoder or Morse Trainer Pro have ads?

RST Decoder shows ads; Morse Trainer Pro does not.

### Which is updated more often, RST Decoder or Morse Trainer Pro?

RST Decoder ships an update every 2 months, and Morse Trainer Pro every 3 weeks. Most recently, RST Decoder was updated on October 21, 2026 and Morse Trainer Pro on October 9, 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.*