# CW Trainer — Learn Morse with AI

> Morse code trainer utilizing the Koch method for learning and skill improvement. (iPhone/iPad app by md.)

- Source: https://appshunter.io/ios/app/cw-trainer/id1132950396 (this page in markdown: same URL + `.md`)
- Developer: [md](https://appshunter.io/developer/502360039)
- Category: Education, Utilities
- Price: Free with in-app purchases (on sale, was $0.99)
- Rating: 1.80/5 from 4 App Store ratings · 9 written reviews indexed
- Age rating: 4+
- Requires: iOS 13.0 · 71 MB
- Languages: American English
- Released: 2016-07-12
- Data updated: 2026-08-17
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/cw-trainer/id1132950396/reviews.md

## What is CW Trainer?

CW Trainer — Learn & Practice Morse Code
Become a real CW operator. CW Trainer takes you from your first letters all the way to real QSOs and contests, with a radio simulator that sounds and responds like the real thing.
PROGRESSIVE KOCH METHOD
Learn Morse code one letter at a time with the proven Koch method. Structured curriculum, per-character accuracy stats, and automatic progression when you're ready.
QSO WITH AI OPERATOR
Have realistic radio conversations with an intelligent operator. You call, copy, exchange RST, name, QTH — and if you miss something, the operator repeats it, just like on the air. Every QSO is with a different station from around the world.
CONTEST MODE
Train for CQ WW and WPX contests in Search & Pounce or Running. Pile-ups, rapid exchanges, ever-changing callsigns, and realistic error handling.
MAKE IT YOURS
Speeds from 5 to 60 WPM, a level system from Bronze to Legend, daily reminders, and leaderboards to challenge other operators.
73 and enjoy CW!
This app uses Apple's Standard End User License Agreement: http://www.apple.com/legal/itunes/appstore/dev/stdeula

## Key features

- Morse code learning
- Koch method implementation
- Proficiency-based learning
- Skill improvement

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| DX Pass — Monthly | $3.99 | per month |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| CW Trainer — Full Unlock | $4.99 | one-time |


## Recent user reviews (9 of 9)

All indexed reviews: https://appshunter.io/ios/app/cw-trainer/id1132950396/reviews.md

### 3/5 — Problema

*2025-10-10, version 1.0.5*

Non riesco a far funzionare l’audio e senza questo è inutilizzabile

### 5/5 — Molto molto utile.

*2024-09-30, version 1.0.5*

Sono radioamatore da molti anni…. Ho lasciato per troppo tempo questa attività,e adesso voglio riprendere a masticare il CW. Tanto per riprendere un po’ l’orecchio. Questa applicazione mi sembra molto utile per rispolverare questo affascinante modo di comunicare….. Grazie IU5IKK..

### 1/5 — Does not work on iPad

*2023-01-03*

Does not work on iPad and no response from developer DO NOT BUY

### 1/5 — Horrible Bluetooth sound and audio noise control on iPhone-8 running ios14

*2020-11-10*

I wish I could get a refund, the sound of the tone gets very distorted after a few minutes of use with Bluetooth earbuds.  Wired buds sound OK.

### 4/5 — Has promise

*2020-05-04*

I have used it for about 5 mins so far and what I do like about the app is I can type what I hear in the app, I don’t need a separate piece of paper to practice. 
The menu needs some work, for example: settings Should be accessible prior to starting a lesson.  
I will continue to use this app in my practice and will update related later.

### 2/5 — Fairly rudimentary bugs need ironing out

*2020-02-14*

This app does what it says on the tin, however if you hit the prescribed 90% on one set of characters and then repeat it and hit 90% again it will display the next set as completed. Do it again and the third set will appear as completed... This is totally misleading.

### 4/5 — All good but two issues

*2019-05-02*

At the first time training all is good. But second lesson has a changed (awful for ears) sound tone and marking of ended lessons is wrong.

### 1/5 — no sound

*2018-06-09*

it would be a 5 if the sound would be working.
how can it even be offered for sale with such a major bug.
UPDATE:
On my iPhone I have sound. The concept is good but there is way to adjust the space between characters to a manageable time for beginners. I set the spacing at 5 but it doesn’t seem to make a difference

### 5/5 — Utilissima!

*2016-08-21, version 1.0*

App completa di tutto; guida perfetta all'apprendimento del cw.

## Frequently asked questions about CW Trainer

### How does CW Trainer teach Morse code?

CW Trainer uses the Koch method, a highly effective approach that starts with just two letters at full speed. New letters are introduced only after you achieve 90% proficiency with the current set.

### What is the Koch method?

The Koch method is a recognized technique for learning Morse code by introducing characters at their full sending speed. This helps users develop accurate rhythm and speed from the outset, rather than learning slowly and then speeding up.

### What devices does CW Trainer support?

CW Trainer is available on iPhone, iPad, and iPod. It is designed for iOS devices.

### How much does CW Trainer cost?

CW Trainer is a paid application, priced at $0.99. This is a one-time purchase.

### When was CW Trainer last updated?

The latest version of CW Trainer was released on October 21, 2017. The initial release date was July 12, 2016.

### What is the age rating for CW Trainer?

CW Trainer has an age rating of 4+, making it suitable for a wide range of users.

### Does CW Trainer have ads?

No, CW Trainer does not contain advertisements. As a paid app, it offers an ad-free learning experience.

### What is the user feedback on CW Trainer?

CW Trainer has received a rating of 1.8 stars from 4 ratings. This indicates a mixed to negative reception from its current user base.

## Version history (last 5 releases)

### 2.0.1 — 2026-06-09

Version 2.0 — First release!

- AI QSO simulator: realistic radio conversations with stations from around the world
- CQ WW and WPX contest training in Search & Pounce and Running mode
- Progressive Koch curriculum with per-character accuracy stats
- Pile-up trainer with 5 difficulty levels
- Weekly leaderboard and ranking system from Bronze to Legend
- Customizable daily reminders
- Italian and English support

### 1.0.5 — 2017-10-21

This app has been updated by Apple to display the Apple Watch app icon.

Fixed some problems, improved performance, compatibility with last versions of iOS.

### 1.0.2 — 2017-01-07

Bug fixing. Code optimization

### 1.0.1 — 2016-10-09

Bug fixing, optimization and iOS 10 compatibility.

### 1.0 — 2016-07-12

No release notes.

## Apps similar to CW Trainer

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Learn Morse Code - CW Trainer](https://appshunter.io/ios/app/learn-morse-code-cw-trainer/id1463307275) | 2.4 (5) | Free | Education |
| [Morse Code Trainer & Practice](https://appshunter.io/ios/app/morse-code-trainer-and-practice/id6748040912) | 4.7 (53) | Free | Education |
| [Morse Tutor and Trainer](https://appshunter.io/ios/app/morse-tutor-and-trainer/id6744073720) | 5.0 (1) | Free | Education |
| [Morse ICR](https://appshunter.io/ios/app/morse-icr/id6736839333) | 4.0 (4) | Free | Education |
| [QRQ CW](https://appshunter.io/ios/app/qrq-cw/id6447576515) | 4.3 (7) | Free | Education |
| [Signal - Morse Code Practice](https://appshunter.io/ios/app/signal-morse-code-practice/id6751603981) | 5.0 (10) | Free | Education |

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All apps by md: https://appshunter.io/developer/502360039

## Related topics

[cw trainer](https://appshunter.io/ios/topics/cw-trainer)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-17.*