# WatchG30 vs CW Decoder

The clearest difference is review sentiment: WatchG30 at 100% against CW Decoder's 0%. WatchG30 also leads on rating (4.0 vs 2.0) and in-app purchases (none vs 1). CW Decoder's advantage is price (Free vs $1.99) and update cadence (every 8 days vs every 40 months). On ratings volume and ads there is nothing between them.

CW Decoder is free to download; WatchG30 costs $1.99 up front. CW Decoder sells 1 one-off in-app purchase. WatchG30 asks for nothing beyond the download.

WatchG30 holds the better App Store score, 4.0 against 2.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews point the same way: 100% of WatchG30's written reviews are positive against 0% of CW Decoder's.

WatchG30 ships an update every 40 months, CW Decoder every 8 days. The most recent releases landed on September 22, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | WatchG30 | CW Decoder |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/watchg30/id6448919640/reviews)** | [2.0 (1 ratings)](https://appshunter.io/ios/app/cw-decoder/id6748900681/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 40 months | **Every 8 days** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 7 MB | 12 MB |
| Requires iOS | **15.0** | 17.2 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Ivan Cerra de Castro](https://appshunter.io/developer/321270638) | [Keiya Chiba](https://appshunter.io/developer/1740986591) |

## What reviewers say

### WatchG30

[App page](https://appshunter.io/ios/app/watchg30/id6448919640)

Pilot a submarine to intercept incoming depth charges launched from a destroyer. Navigate through 10 increasingly challenging levels, each requiring you to intercept 10 charges to advance. Master the controls to fire and move your submarine effectively.

**Highlights:** Submarine control, Depth charge interception, 10 challenging levels, Increasing difficulty, Bonus phase progression

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### CW Decoder

[App page](https://appshunter.io/ios/app/cw-decoder/id6748900681)

This application uses AI for high-accuracy Morse code decoding. It offers real-time signal processing for steady performance in noisy conditions. A free version allows for short decoding sessions, while a paid upgrade provides unlimited use and advanced features.

**Highlights:** AI-driven decoding, Real-time signal processing, Adjustable speed and thresholds, Decodes letters, numerals, and prosigns, Built-in microphone input, USB-C audio input (full version), Scrollable decoded text

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Full Version | $2.99 | one-time |


## Frequently asked questions

### Is WatchG30 free?

WatchG30 costs $1.99, with no in-app purchases.

### Is CW Decoder free?

CW Decoder is free to download, with in-app purchases available.

### Which has better reviews, WatchG30 or CW Decoder?

WatchG30 is rated higher. WatchG30 averages 4.0 out of 5 from 1 ratings, while CW Decoder averages 2.0 from 1 ratings.

### Do WatchG30 or CW Decoder have ads?

Neither WatchG30 nor CW Decoder shows ads.

### Which is updated more often, WatchG30 or CW Decoder?

WatchG30 ships an update every 40 months, and CW Decoder every 8 days. Most recently, WatchG30 was updated on September 22, 2026 and CW Decoder on October 11, 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.*