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Android Apps > Communication > DS1UOV's Morse Trainer w/ Koch
DS1UOV's Morse Trainer w/ Koch icon

DS1UOV's Morse Trainer w/ Koch

by CommonSource · Communication · Free
On Google Play since January 2026 · Data updated 2026-09-25
Google Play

DS1UOV's Morse Trainer w/ Koch is made and published by CommonSource. AppBrain is an independent app data site and isn't affiliated with CommonSource. The app name, icon, screenshots and description belong to CommonSource and are shown as published on Google Play.

AppBrain's verdict

Niche
Total installs
840
Last updated
September 9, 2026

DS1UOV's Morse Trainer w/ Koch is a niche app, with 840 installs. It doesn't have enough ratings yet to judge what users think.

Summary

DS1UOV's Morse Trainer w/ Koch delivers a structured, measurable path to mastering Morse code using the Koch method. It emphasizes level-based progression, performance-tied milestones, and a focused input experience, empowering learners to build accuracy with real-time feedback without an AI opponent.

Pros & Cons

  • Structured Koch method with incremental level unlocks
  • Clear progress tracking and smart review to reinforce weak points
  • Custom audio and session presets for tailored practice
  • Focused input grid reduces errors and supports external keyboards
  • No AI opponent or competitive mode to challenge progress
  • New app with limited market exposure so far

Installs

Tracked by AppBrain
Last 30 days
44
Play install range
500+
Launched
January 2026

Installs over time

DS1UOV's Morse Trainer w/ Koch has been installed 840 times. Over the past 30 days, it has been installed 44 times.

Rankings

Google Play top charts

Google Play Rankings for DS1UOV's Morse Trainer w/ Koch

This app is not ranked

Competitors

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Also available on the App Store

DS1UOV's Morse Trainer w/ Koch icon DS1UOV's Morse Trainer w/ Koch
CommonSource
0.0
$9.99

Releases

Updates seen on Google Play
Version
1.0.17
Launched
January 2026
  • Sep 9, 2026UpdateVersion 1.0.17
  • Aug 13, 2026CategoryMoved from Tools to Communication
  • Jul 6, 2026UpdateVersion 1.0.16
  • May 11, 2026UpdateVersion 1.0.15
  • Apr 17, 2026Installs500+ installs
Show all changes Show fewer

User feedback

Ratings and reviews on Google Play

Comments on DS1UOV's Morse Trainer w/ Koch for Android

★★★★☆ Fuse · Jan 3, 2026
I think this app could be extremely helpful training in Morse Code using the Koch method. However, whenever I start a new session, the first character is always garbled, so I have no idea what it is. This is just a rough way to start, and it's hard for a beginner to catch up. If you could add a delay timer in your code whenever a new session is started, this might solve the issue?

Technology

Found in the app by AppBrain
Ads
No ads
Price
Free
Libraries
?
App size
23.3 MB
Content rating
Everyone

Technologies used by DS1UOV's Morse Trainer w/ Koch

11 permissions
Subscribe to see full permission and library details
Trust & Safety: The app requests standard connectivity and attribution permissions (INTERNET, ACCESS_NETWORK_STATE, WAKE_LOCK, AD_ID, INSTALL_REFERRER) and license verification. These are typical for free apps with ads and license checks. There are no location, contacts, or sensitive data permissions listed.

About the app and developer

About DS1UOV's Morse Trainer w/ Koch

DS1UOV's Morse Trainer w/ Koch is a communication app developed by CommonSource.

Install Statistics

DS1UOV's Morse Trainer w/ Koch has been installed 840 times. In the last 30 days, the app was installed 44 times.

User Ratings

The app has no ratings yet.

App Information

DS1UOV's Morse Trainer w/ Koch is freely available from Google Play. The app size is 23.29 MB. The latest version available is 1.0.17. The last update was on September 9, 2026.

Technical Requirements

The app has a content rating of Everyone. The app has been available on Google Play since January 2026.

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Developer information for CommonSource

CommonSource

contact@commonsourcelab.com

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Share DS1UOV's Morse Trainer w/ Koch

Store listing

By CommonSource, from Google Play

“Master Morse code with the Koch method: speed control, practice, and analysis.”

DS1UOV's Morse Trainer w/ Koch Screenshot 1 of 5
DS1UOV's Morse Trainer w/ Koch Screenshot 2 of 5
DS1UOV's Morse Trainer w/ Koch Screenshot 3 of 5
DS1UOV's Morse Trainer w/ Koch Screenshot 4 of 5
DS1UOV's Morse Trainer w/ Koch Screenshot 5 of 5
Screenshots by CommonSource, from the Google Play listing
Description by CommonSource Written by the developer, not by AppBrain. Click to read.
📻 DS1UOV’s Morse Trainer

Train Morse code reception in a structured way using the Koch method, designed for learners who want measurable progress and practical CW listening skills.

✅ KOCH METHOD, DONE RIGHT

Start with a small character set, build accuracy, then unlock the next character only when you are ready.
Your level system is tied to performance, so each step feels earned and stable rather than rushed.

🎯 SMART ADAPTIVE LEARNING

• Weakness-Targeted Practice: Tired of practicing characters you already know by heart? Toggle "Adaptive Weighting" on to automatically analyze your last 10 sessions. Characters with lower accuracy will appear up to 4x more frequently to sharpen your weak points.
• Tailored to Your Flow: This intelligent weighting applies to both Koch and custom character practice modes, focusing your efforts right where they are needed most.

📊 INSIGHTFUL STATISTICS DASHBOARD

Track your growth with a newly designed, visually intuitive statistics hub that respects your app’s clean design language:
• Quick Summary Tiles: Keep an eye on your current learning Streak (🔥), total completed sessions, accumulated training time, and your rolling 10-session average accuracy.
• Accuracy Trend Line Chart: Visualize your progress over your last 20 sessions with a clean, responsive line graph complete with interactive touch tooltips showing exact dates and scores.
• Character Accuracy Grid: A full heat-mapped grid displaying cumulative accuracy for every Koch and custom character. It includes clear percentage labels and highlights your top 3 "Critical Characters" needing immediate attention.
• Recent Session Logs: Scroll through your last 8 sessions featuring distinct mode icons, timestamps, and accuracy badges to review your historical performance at a glance.

🔥 STREAKS & DAILY REMINDERS

Consistency is key to mastering Morse code. Build a sustainable daily habit with zero background battery drain:
• Daily Learning Streak: Complete at least one session a day to keep your streak burning. The flame turns a vibrant orange when you've secured your goal for the day.
• Smart Reminders: Schedule a daily notification at your preferred time via an animated time-picker. Built using modern Android notification APIs, it gracefully handles system reboots to ensure you never miss your practice window.

⚙️ CUSTOM AUDIO & SESSION SETTINGS

Tune your practice to your ears and your goals: adjust training speed settings and pick a tone frequency that is comfortable for long sessions.
Use presets (beginner to expert) when you want a proven setup without manual tweaking.
Each session is built to keep your attention on what matters—recognition accuracy under realistic timing.

⌨️ FOCUSED INPUT EXPERIENCE

Practice with a dedicated on-screen character grid that only shows the characters available at your current level, reducing accidental inputs.
Pause and resume sessions cleanly, with visible timing/progress indicators so you always know where you are in the run.
Optional physical keyboard input support lets you train like real operating, especially on tablets or with external keyboards.

🧹 SAFE RESETS, WHEN YOU NEED THEM

Reset only Koch progress to restart learning from level 1 while keeping your app settings, or reset all settings back to defaults.
This makes it easy to re-train from scratch, test new configurations, or share the device with another learner.

Start today

Make steady, data-driven progress in Morse reception with a modern UI, adaptive training algorithms, and a methodical flow built around real learning principles.
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