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Morse Code Trainer - CW Key

Morse Code Trainer - CW Key

Koch method CW copy & keying

1 ratings
1 review
📚 Education
Free
In-App Purchases

Details

Released
July 14, 2026
Updated
October 25, 2026

Features

Developer

TAKUYA KONO
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Morse Code Trainer - CW Key screenshot #6 for iPhone
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About

Learn and practice Morse code with interactive receive and send modes. Features the Koch method with adjustable speeds and a real-time decoding system. Unlock new characters as you progress through levels, all while staying offline.

✓Koch method receive training
✓Farnsworth timing
✓Real-time send decoding
✓Automatic dit/dah calibration
✓Progressive character unlocking
✓Adjustable speed and sidetone
✓Offline functionality
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What's New in Morse Code Trainer

1.2.4

October 25, 2026

Fixed a bug in Send practice: letters that start with a dot (R, S, U and others) were split after the first dot. They now key correctly, even if you pause a little between taps.

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1

Subscriptions & In-App Purchases

$3.99

Pro (Supporter Pack)

Alternate icons, theme colors and detailed stats

User reviews

Most RecentHighest RatedLowest Rated

Paid for Pro, doesn’t work past R

There is something wrong I tried the right side tap, left side hold for the longer tone doesn’t work properly.

So R is .-. , so it goes to E, then jumps to T, then N.

There is no possible way to make it register an R and I know I am new but I am making a similar sound. K which is the opposite -.-, I made that with no issue.

Little upsetting it isn’t working.
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VVirgilRodriguez

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FAQ

How does Morse Code Trainer teach Morse code?

Morse Code Trainer uses the Koch method for receiving, starting with two characters at a real-world speed and progressively unlocking more as accuracy improves. The sending mode offers real-time decoding with automatic calibration.

What are the speed settings in Morse Code Trainer?

You can set the character speed between 15-25 WPM and the effective Farnsworth speed between 5-15 WPM. The sidetone frequency can also be adjusted from 400-1000 Hz.

Does Morse Code Trainer have ads?

No, Morse Code Trainer is free with no advertisements, providing an uninterrupted learning experience.

What features are included in the Pro (Supporter Pack)?

The one-time Pro purchase adds alternate app icons, theme colors, and a 30-day progress chart. All core training features are available for free.

Is Morse Code Trainer available offline?

Yes, everything stays on your device. Morse Code Trainer is fully offline, requiring no account and no tracking.

What is the age rating for Morse Code Trainer?

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

How often is Morse Code Trainer updated?

The latest version is 1.2.3, and the app was last updated on October 19, 2026. This indicates a recent update, suggesting ongoing support.

What devices does Morse Code Trainer support?

Morse Code Trainer is currently supported on iPhone devices.