DS1UOV's Morse Trainer: 코흐 학습법

DS1UOV's Morse Trainer: 코흐 학습법

코흐 학습법 기반, 모스 부호 90% 정확도 달성

0 ratings
3 reviews
$9.99

Details

  • Released
  • Updated
  • September 26, 2025
  • July 8, 2026

Features

DS1UOV's Morse Trainer: 코흐 학습법 screenshot #1 for iPhone
DS1UOV's Morse Trainer: 코흐 학습법 screenshot #2 for iPhone
DS1UOV's Morse Trainer: 코흐 학습법 screenshot #3 for iPhone
DS1UOV's Morse Trainer: 코흐 학습법 screenshot #4 for iPhone
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About

This app offers structured Morse code training using the Koch method, focusing on measurable skill improvement. It features performance-based progression, a detailed progress dashboard, and customizable practice settings for efficient learning.

Koch method progression
Performance-based level advancement
Progress dashboard and level selection
Customizable practice settings
Distraction-free training UI
Detailed results and error analysis
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What's New in DS1UOV's Morse Trainer

1.0.16

July 8, 2026

[Update Notice] DS1UOV's Morse Trainer Version 1.0.16 is Live Thank you for using DS1UOV's Morse Trainer. In this major release, we are introducing powerful tools designed to optimize your Morse code learning efficiency. Track your growth with our advanced Statistics Dashboard, conquer your mistakes with Adaptive Weighting, and build lasting habits with Daily Reminders! ■ Key New Features 1. Visual Learning Statistics Dashboard New Statistics Tab: A dedicated 'Stats' tab has been added to the bottom navigation bar. Performance Summary: View your practice statistics at a glance, including total sessions, total practice time, and your average accuracy over the last 10 sessions. Accuracy Trend Chart: Track your progress over the last 20 sessions with a clean, interactive line graph displaying your accuracy curve over time. Character Accuracy Grid: Analyze your performance character by character. A color-coded heatmap shows accuracy percentages for both Koch and custom characters. Characters with error rates over 20% are automatically highlighted in the "Critical Characters" banner. Recent Sessions Log: Review your last 8 practice sessions, including the practice type, exact timestamp, and accuracy score. 2. Smart Adaptive Weighting for Weak Characters Dynamic Probability Analysis: The app now automatically analyzes your error rates from your last 10 sessions. Targeted Practice: Characters you struggle with will now appear more frequently—up to 4 times the default rate—allowing you to face and overcome your weak spots seamlessly. Toggle in Settings: You can easily enable or disable this feature anytime via Settings > Learning Assistant > Target Weak Characters. 3. Daily Streak Counter & Reminder Notifications Streak Tracking Badge: A new Streak badge has been added next to your level on the Home screen. Complete at least one session a day to activate the streak badge and keep your daily momentum going. Daily Practice Reminders: Stay consistent with customizable daily push notifications. The system ensures your scheduled reminder is automatically restored even after a device reboot. Custom Scheduling: Toggle the feature on in Settings > Learning Assistant > Daily Reminder to set your preferred reminder time down to the exact minute. 4. Other Enhancements Added 29 new localization strings for a fully seamless English and Korean UI experience across all new statistics and reminder screens. Improved scoring consistency between screens; unentered characters at the end of a session are no longer counted as errors, matching the logic of the results page. Update now to experience a smarter, data-driven approach to mastering Morse code. 73!

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User reviews

Most effective way to learn CW like LCWO

This app is perfect as it has everything that other apps are missing. It uses the Koch method instead of instant character recognition, it has the LCWO letter order which is proven to be most efficient, it allows you to set a separate character feed and effective speed, and it lets you practice full words and callsigns. The UI is really nice and easy to use, it's as if the author made the famous LCWO into a user-friendly mobile app!

Only comments: the app should not allow the user to select a character speed of
less than 25WPM (effective speed of less than that is of course okay). And I think it should give the user 2 stars for 15WPM and 3 stars for 15WPM at 1 minute, but this is a tiny detail.

Thank you so much for making this!
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Response from developer

Thank you so much for such an incredible and detailed review! Hearing that the app checks all the boxes for you, from the Koch method and LCWO letter order to the UI, absolutely makes our day. Knowing it feels like a user-friendly mobile version of LCWO is the ultimate compliment. Your feedback on the character speed limit and the star rating system is extremely valuable. Currently, the system is designed to award 3 stars for 20 WPM and above for more than 1 minute, 2 stars for 15 WPM and above for more than 30 seconds, and 1 star for 15 WPM and under or 30 seconds and under. To be honest, we initially worried that 15 WPM might be a bit too low of a threshold for a 3-star rating. However, your perspective got us thinking! We would love to know if there is a specific reason or a common training milestone behind your suggestion to give 2 stars for 15 WPM and 3 stars for 15 WPM at 1 minute. Please feel free to share your thoughts on this, or any other features you'd like to see, anytime. Thank you again for your amazing support!

How do I get a refund.

The key board function is very clunky and non responsive. I would like a refund

Response from developer

We are sorry for the inconvenience you've experienced. Based on our internal testing, the keyboard function is operating normally; however, performance issues can sometimes occur due to specific device environments or background app conflicts. ​We recommend trying to [Settings > Reset App] to see if that resolves the issue. If the problem persists, please contact us at support@commonsourcelab.com with your device model and OS version. We will investigate this immediately to provide a solution. Regarding refunds, please follow the standard procedure provided by the App Store, as all transactions are managed by them directly.

Effective speed doesn’t work

I like that the letters match lcwo.net but the effective speed setting does nothing. Setting 25/5 or 25/10, it still does 25/25. It’s a fine app if you don’t want to use Farnsworth spacing, I guess.

Response from developer

​Thanks for the input. We're reviewing the feature now. ​Please note that our Farnsworth implementation specifically targets the spacing between groups. While the 5 characters in a group maintain the character speed (e.g., 25 WPM), the pause before the next group starts should be significantly longer. ​Is the interval between these groups still appearing too short for you? We’ll do another internal check to be sure.

Developer apps

FAQ

What is the Koch method used in DS1UOV's Morse Trainer?

The Koch method involves learning Morse code characters one by one, starting with a small set and gradually adding more as your accuracy improves. DS1UOV's Morse Trainer implements this by requiring a 90% accuracy threshold before unlocking the next character.

How does DS1UOV's Morse Trainer track progress?

The app features a progress dashboard that visually displays your current level, highest unlocked level, and overall completion percentage. You can also select any unlocked level to review and reinforce previously learned characters.

Can I customize my practice sessions in DS1UOV's Morse Trainer?

Yes, you can adjust session settings such as tone frequency and speed. The app also provides built-in presets ranging from beginner to expert to help you start quickly with sensible defaults.

What kind of feedback does DS1UOV's Morse Trainer provide?

After each session, you'll receive detailed results including accuracy percentage and feedback on whether you met the advancement threshold. You can also review side-by-side comparisons of transmitted text versus your input to identify errors and inspect mistake statistics for commonly confused characters.

Does DS1UOV's Morse Trainer support physical keyboard input?

Yes, the app supports physical keyboard input, which can enable more realistic practice, especially on tablets or when using external keyboards. The input grid is automatically limited to characters available at your current level.

What are the reset options in DS1UOV's Morse Trainer?

You have the option to reset only your Koch training progress, which restarts you from level 1 while preserving your settings. Alternatively, you can reset all settings back to their default values if needed.

What devices is DS1UOV's Morse Trainer compatible with?

DS1UOV's Morse Trainer is compatible with iPhone, iPad, and iPod devices. It is rated for ages 4 and up.

How often is DS1UOV's Morse Trainer updated?

The latest version of DS1UOV's Morse Trainer is 1.0.14, and it was last updated on March 5, 2026. This indicates a relatively recent update frequency.