# RST Decoder Pro vs Morse ICR

The clearest difference is price: Morse ICR at Free against RST Decoder Pro's $1.99. Morse ICR also leads on ratings volume (4 vs 1) and device support (3 vs 1). RST Decoder Pro's advantage is rating (5.0 vs 4.0) and update cadence (monthly vs every 4 months). On review sentiment, ads and in-app purchases there is nothing between them.

Morse ICR is free to download; RST Decoder Pro costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

RST Decoder Pro holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 4 respectively. Written reviews split almost evenly too, at 50% and 50% positive.

RST Decoder Pro ships an update monthly, Morse ICR every 4 months. The most recent releases landed on September 20, 2026 and June 7, 2026 respectively.

## The numbers

| Metric | RST Decoder Pro | Morse ICR |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/rst-decoder-pro/id1521025545/reviews)** | [4.0 (4 ratings)](https://appshunter.io/ios/app/morse-icr/id6736839333/reviews) |
| Number of ratings | 1 | **4** |
| Positive reviews | 50.0% of reviews | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 4 months |
| Monetization | Paid | **Free** |
| Size | 1 MB | 1 MB |
| Requires iOS | 17.0 | **15.6** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [koji kamogawa](https://appshunter.io/developer/1488210713) | [Jouni Erola](https://appshunter.io/developer/295758397) |

## What reviewers say

### RST Decoder Pro

[App page](https://appshunter.io/ios/app/rst-decoder-pro/id1521025545)

This application decodes Morse code from your device's microphone, offering two decoding methods (BPF and FFT) with adjustable parameters. It includes features like automatic frequency detection, gain control, and real-time signal display for accurate Morse code practice and reception.

**Highlights:** Microphone Morse code decoding, BPF and FFT decoding methods, Auto Frequency Detector (AFD), Auto Gain Control (AGC), Real-time CW signal display, Waterfall display (Pro version), Adjustable control parameters

**In-app purchases:** none


### Morse ICR

[App page](https://appshunter.io/ios/app/morse-icr/id6736839333)

This app helps you learn Morse code by sound through interactive practice and real-time audio feedback. It offers a progressive learning system, customizable sessions, and streak tracking to build your confidence and mastery.

**Highlights:** Interactive keyboard input, Visual learning cues, Progressive character introduction, Customizable practice sessions, Streak tracking, Comprehensive statistics, Adaptive difficulty

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is RST Decoder Pro free?

RST Decoder Pro costs $1.99, with no in-app purchases.

### Is Morse ICR free?

Morse ICR is free to download, with no in-app purchases.

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

RST Decoder Pro is rated higher. RST Decoder Pro averages 5.0 out of 5 from 1 ratings, while Morse ICR averages 4.0 from 4 ratings.

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

Neither RST Decoder Pro nor Morse ICR shows ads.

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

RST Decoder Pro ships an update monthly, and Morse ICR every 4 months. Most recently, RST Decoder Pro was updated on September 20, 2026 and Morse ICR on June 7, 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.*