AppBrain
AppBrain
  • Apps
  • Apps being viewed right now Trending apps today Most popular apps All-time most installed apps Top rated apps iPhone and iPad apps
  • Intelligence ▾
    Intelligence overview → Track any Android app or your whole market
    Track & analyze
    Keyword Tracker & OptimizerTrack & improve Play rankings App Performance ReportOne-off PDF for any app StatisticsFree Android & Play market stats
    Promote your app
    Featured Apps App Links
  • Intelligence
  • Pricing
  • Dashboard
  • Sign up
  • Log in
Android Apps > Education > J42 Morse Code Trainer
J42 Morse Code Trainer icon

J42 Morse Code Trainer

by Java42 Mobile · Education · Free
No longer on Google Play

J42 Morse Code Trainer is made and published by Java42 Mobile. AppBrain is an independent app data site and isn't affiliated with Java42 Mobile. The app name, icon, screenshots and description belong to Java42 Mobile and are shown as published on Google Play.

AppBrain's verdict

Removed
Rating on Google Play
3.44
29 ratings
Installs
4 thousand
Last updated
January 21, 2023
Ads
Contains ads
Size
9.27 MB

J42 Morse Code Trainer is no longer on Google Play. It was there for 6 years, until September 2026. It was a niche app, with 4 thousand installs. It had too few ratings to say what users thought.

User feedback

Ratings and reviews on Google Play

Comments on J42 Morse Code Trainer for Android

★★★★★ Ham01 Radio · Jul 28, 2020
Latest update works great. Now 5 star. Thanks.
★☆☆☆☆ BOUNDLESS FREEDOM · Jan 2, 2022
How in the heck is this supposed to work ? How do ypu start ? Got as far as my call sign, but cant figure the resf out. Look elsewhere for a code trainer

Google Play Rating history and histogram

The year before it was removed from Google Play, up to September 2026

16
0
3
0
9

Store listing

By Java42 Mobile, from Google Play
This app is currently not available on Google Play.

Similar apps

Morse Code Complete: Learn CW icon Morse Code Complete: Learn CW
Sparks Digital Studio
4.8
Free
100,000+
Morse Mania: Learn Morse Code icon Morse Mania: Learn Morse Code
Dong Digital
4.8
Free
1,000,000+
MorseKit: Morse Code Trainer icon MorseKit: Morse Code Trainer
First Point
4.5
Free
10,000+
10 WPM CW Morse code trainer icon 10 WPM CW Morse code trainer
KG9E
4.1
Free
10,000+
CW Studio: Fun Morse Code icon CW Studio: Fun Morse Code
Infocamp Sistemas
4.8
Free
100,000+
20 WPM CW Morse code trainer icon 20 WPM CW Morse code trainer
KG9E
4.4
$3.99
1,000+
Morse Code - Learn & Translate icon Morse Code - Learn & Translate
Pavel Holeček
4.4
Free
1,000,000+
CW Morse practice oscillators icon CW Morse practice oscillators
KG9E
3.8
$4.99
1,000+

“App for novice or experienced ham radio operators interested in Morse code.”

Screenshots of this removed app
We kept the screenshots from before it was removed. Subscribe to see them.
Description by Java42 Mobile Written by the developer, not by AppBrain. Click to read.
Listen to CW words, letters or groups at various speeds and formats.

Designed to make it easy to recognize Morse code characters at various speeds.

Improve existing CW skills for those who already know the code.

Code oscillator outputs tones from 5 to 39 words per minute.

Tone frequency is adjustable from 500 Hz to 2.9 kHz.

Choose from Over 100 programmed character sequences.

Optional alphanumeric cues.

Optional voice cues.

Loop mode plays the selected character sequence continuously.

Optionally disable the tone generator for visual training.

Use the in-app feedback option to leave comments and suggestions or to request enhancements.

Recent changes:
122 (v122.23.01.21-L) Maintenance update. New tone generator. Increased max WPM.

Use the in-app feedback option to leave comments and suggestions.

Safety and technology

Found in the app by AppBrain
Ads
Contains ads
Price
Free
Libraries
15
App size
9.27 MB
Needs Android
4.4+
Content rating
Everyone

Technologies used by J42 Morse Code Trainer

9 permissions · 15 libraries
Subscribe to see full permission and library details

Releases

Updates seen on Google Play
Version
v122.23.01.21-L
Launched
April 2020
  • Sep 11, 2026Unpublished
  • Jan 21, 2023UpdateVersion v122.23.01.21-L
  • Sep 3, 2022UpdateVersion v114.22.09.03-L
  • Aug 6, 2022UpdateVersion v112.22.08.06-L
  • Apr 28, 2021UpdateVersion v88.21.04.29
Show all changes Show fewer

Installs

Tracked by AppBrain
Play install range
1+ thousand
Launched
April 2020

Installs over time

The year before it was removed from Google Play, up to September 2026

J42 Morse Code Trainer was installed 4 thousand times before it was removed.

About the app and developer

About J42 Morse Code Trainer

J42 Morse Code Trainer was an education app developed by Java42 Mobile. It was removed from Google Play Sep 11, 2026.

Install Statistics

J42 Morse Code Trainer had been downloaded 4 thousand times before it became unavailable.

User Ratings

J42 Morse Code Trainer was rated 3.44 out of 5 stars, based on 29 ratings.

App Information

J42 Morse Code Trainer was free. The APK size was 9.27 MB. The last available APK version was v122.23.01.21-L. The last update was on January 21, 2023.

Technical Requirements

J42 Morse Code Trainer required Android 4.4+ or higher. The app had a content rating of Everyone. The app had been available on Google Play since April 2020.

App Performance Report

Get a detailed PDF report for J42 Morse Code Trainer with download trends, rating history, and key performance statistics — useful for competitive research or tracking your own app. Learn more

Get PDF Report — $29

Developer information for Java42 Mobile

Java42 Mobile

Legal name:

Address:

Share J42 Morse Code Trainer

Price drops on Google Play Today's trending apps Top new apps Popular Education Apps Apps other people are watching
Morse Code Complete: Learn CW icon Morse Code Complete: Learn CW
Morse Mania: Learn Morse Code icon Morse Mania: Learn Morse Code
MorseKit: Morse Code Trainer icon MorseKit: Morse Code Trainer
10 WPM CW Morse code trainer icon 10 WPM CW Morse code trainer
CW Studio: Fun Morse Code icon CW Studio: Fun Morse Code
20 WPM CW Morse code trainer icon 20 WPM CW Morse code trainer
Morse Code - Learn & Translate icon Morse Code - Learn & Translate
CW Morse practice oscillators icon CW Morse practice oscillators
Overview History Reviews Technology
AppBrain Intelligence premium content

Subscribe now to get full and unlimited access to AppBrain Intelligence. You'll have access to:

  • App Intelligence dashboard (performance timeline, competitor comparison, country rankings, insight cards)
  • Detailed ranking data per app
  • Full timeline per developer
  • Device market shares data per country
  • Unlimited keyword tracking
1 Month

$75/mo
(billed every month)

SAVE 0%
Subscribe
3 Months

$65/mo
($195 billed every 3 months)

SAVE 13%
Subscribe
1 Year

$57.50/mo
($690 billed every year)

SAVE 23%
Subscribe
Each subscription will automatically renew 3 days before the expiration date for the same time period. Subscriptions can be cancelled at any time before the renewal.

AppBrain is an app data site, we track rankings, ratings, installs for all apps and games on Google Play and the App Store. AppBrain doesn't host app files or APKs, all install links go directly to the official store. All trademarks are owned by their respective owners.

More apps

  • Top Android apps being viewed
  • Habesha Hub
  • Animal Live Wallpaper stats
  • Venabox Hub - Ani Planet

App statistics

  • Android statistics
  • Google Play Developer stats
  • Trending Android Apps
  • Trending iOS apps
  • Top popular Apps
  • Buy the best Android phone
  • Buy & sell app businesses

About AppBrain

  • Contact
  • Privacy
  • Documentation
  • DMCA takedowns
  • Blog
  • How to improve the earnings of your ad units
© 2010-2026 - AppBrain