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Android Apps > Education > Morse Code Trainer (Learn CW)
Morse Code Trainer (Learn CW) icon

Morse Code Trainer (Learn CW)

by Claus Niesen · Education · Free
On Google Play since May 2018 · Data updated 2026-09-28
Google Play

Morse Code Trainer (Learn CW) is made and published by Claus Niesen. AppBrain is an independent app data site and isn't affiliated with Claus Niesen. The app name, icon, screenshots and description belong to Claus Niesen and are shown as published on Google Play.

AppBrain's verdict

Established
Total installs
15 thousand
Rating on Google Play
4.05
83 ratings
Last updated
February 28, 2021

Morse Code Trainer (Learn CW) has 15 thousand installs. It doesn't have enough ratings yet to judge what users think.

Installs

Tracked by AppBrain
Last 30 days
10
Play install range
10+ thousand
Launched
May 2018

Installs over time

Morse Code Trainer (Learn CW) has been installed 15 thousand times. Over the past 30 days, it has been installed 10 times.

Rankings

Google Play top charts

Google Play Rankings for Morse Code Trainer (Learn CW)

This app is not ranked

Competitors

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Releases

Updates seen on Google Play
Version
4.3
Launched
May 2018
  • Dec 19, 2022Installs10,000+ installs
  • Feb 28, 2021UpdateVersion 4.3
  • May 14, 2020Installs5,000+ installs
  • Jan 4, 2020UpdateVersion 4.1
  • Oct 11, 2019UpdateVersion 4.0
Show all changes Show fewer

User feedback

Ratings and reviews on Google Play

Google Play Rating history and histogram

56
7
0
3
15

Comments on Morse Code Trainer (Learn CW) for Android

★★★★★ S F · Mar 3, 2022
What I was looking for audio only for hands-free repetition. Only used it for 20 minutes so far, but it looks like a person could make a .txt with letters they want to focus on. (My brain's baud is too slow for 26 characters)
★★★★☆ R.E. Klaus · Jun 21, 2021
Good Morse code trainer. Exactly the type I've been looking for. Would be good method for the blind as you hear both the code and the letter, number or symbol. Only problem is the voice is not always clear as to what the letter is, V and B sound alike as do some other letters.
★★☆☆☆ Peter M · Mar 13, 2021
Need help with vocalizations and sequence. Plays once, no vocalization, then stops. Have to press stop then start and same result.
★☆☆☆☆ Richard Jamison · Dec 19, 2018
Why does this require access to my photos, media, and files? I denied access, and it would not let me use the program. Obviously, I uninstalled.
★☆☆☆☆ Paul Alexandru · Aug 27, 2019
It is asking for permission to media and files. Other apps don't need this, and I don't see why this one asks for them. I see someone else raised this issue and the developer posted a shady explanation about storing files of letters. I don't believe it. Edit after the developer's reply: listen to the feedback users give instead of being condescending. Other apps with denied permission simply post a notification that the feature for which the permission was required will be disabled.
★☆☆☆☆ Dovid Pfeiff · Jun 29, 2020
Doesn't sound automatically the whole sound file, just one word, and that's it. . .

Technology

Found in the app by AppBrain
Ads
No ads
Price
Free
Libraries
5
App size
2.88 MB
Needs Android
4.0.3+
Content rating
Everyone

Technologies used by Morse Code Trainer (Learn CW)

2 permissions · 5 libraries
Subscribe to see full permission and library details

About the app and developer

About Morse Code Trainer (Learn CW)

Morse Code Trainer (Learn CW) is an education app developed by Claus Niesen.

Install Statistics

Morse Code Trainer (Learn CW) has been installed 15 thousand times. In the last 30 days, the app was installed 10 times.

User Ratings

Morse Code Trainer (Learn CW) is rated 4.05 out of 5 stars. The rating is based on 83 ratings.

App Information

Morse Code Trainer (Learn CW) is freely available from Google Play. The app size is 2.88 MB. The latest version available is 4.3. The last update was on February 28, 2021.

Technical Requirements

Morse Code Trainer (Learn CW) requires Android 4.0.3+ or higher. The app has a content rating of Everyone. The app has been available on Google Play since May 2018.

App Performance Report

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Developer information for Claus Niesen

Claus Niesen

claus@niesens.com

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Store listing

By Claus Niesen, from Google Play

“Learn Morse code by listening”

Morse Code Trainer (Learn CW) Screenshot 1 of 7
Morse Code Trainer (Learn CW) Screenshot 2 of 7
Morse Code Trainer (Learn CW) Screenshot 3 of 7
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Morse Code Trainer (Learn CW) Screenshot 5 of 7
Morse Code Trainer (Learn CW) Screenshot 6 of 7
Morse Code Trainer (Learn CW) Screenshot 7 of 7
Screenshots by Claus Niesen, from the Google Play listing
Description by Claus Niesen Written by the developer, not by AppBrain. Click to read.
**Free: no ads, no privacy intrusion, no hidden fees, fully open source**

The recommended way to learn Morse code (cw) is not by remembering dots and dashes but by remembering the sound.

This app plays character, words and phrases in Morse code, gives you a brief moment of time to recognize it and then speaks out loud the answer. Allowing you to learn Morse code without having to look at or interact with your phone. Hopefully the app helps you and me learn to copy Morse code in our heads.

Features:
* User setting to repeat character/word/phrases multiple times before going to the next one.
* User setting to give hint before/after Morse code. Allows you to practice reading and generating Morse code in your head.
* Your own custom word list (see below).
* Set speed, farnsworth spacing, pitch, and more.
* Dark mode, to match your phones theme.

The app comes with the following word lists:
* abc.txt - contains the alphabet (a to z)
* numbers.txt - contains numbers (1 to 9 and 0)
* symbols.txt - period, stoke and question mark
* abc_numbers_symbols.txt - combination of the three files above
* memory_words.txt - some memory words

The app requires write access to your device's USB storage in order to work. The directory "Claus' Morse Trainer" will be created for the words lists. The directory can be safely deleted after you uninstall the program.

You can create your own custom files with characters, words or phrases that you want to learn. Just create a text file with each character, word or phrase on a separate line. If the Morse text and spoken text is different then separate them with a vertical pipe "|". E.g.:
tu|thank you

Tip: The Google Text-to-speech engine sounds quite a bit better than the Samsung Text-to-speech engine that is enabled by default.

This app is created of love of coding and amateur radio. Done in a professional manner but purely as a hobby. To enhance your and my ability "speak" Morse code and to to operate CW on the air waves. Not only is the app free, but the source code is viewable on Github. No data is collected by the app, so there is no need for a privacy policy.

Please report any issues and errors via GitHub ( https://github.com/cniesen/morsetrainer ). Ideas and code contributions to improve the Morse code trainer are welcome as well.

73, Claus (AE0S)

Formerly known as: Claus' Morse Trainer

Recent changes:
Added vocalize setting to turn on/of spoken text.
Official page on Google Play
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