Learn Morse Code vs Sidetone CW

Master International Morse Code with a progressive learning system designed for ham radio exam prep, aviation communication, and emergency signaling. Learn Morse Code transforms your phone into a tactical morse code trainer with authentic audio playback, decode practice, and speed drills that take you from zero to fluent CW operator. PROGRESSIVE LEARNING SYSTEM Start with the alphabet, then advance through numbers, punctuation, and prosigns. Each character set builds on the last, with mastery tracking that ensures you never move forward until you're ready. REAL AUDIO MORSE CODE PLAYBACK Hear every character as a pure sine wave tone with authentic dit/dah timing. Adjust speed from 5 to 30 WPM and tone frequency from 400 to 1000 Hz. This isn't a recording - it's programmatically generated morse code with proper Farnsworth timing. DECODE PRACTICE MODE The real test: listen to morse code audio and identify the character. Train your ear the same way professional CW operators do. Build the reflexive recognition you need for your ham radio license exam. SPEED TRAINER Progressive WPM challenges push your receiving speed higher. Start slow, build muscle memory, and work toward real-world CW operating speeds used on amateur radio bands. FLASHCARD LEARNING Study every character with visual morse code display and instant audio playback. Tap to hear, tap to reveal. Simple and effective memorization. HAPTIC FEEDBACK Feel the dit-dah pattern through your device. A tactile dimension that reinforces timing patterns and helps encode morse rhythm into muscle memory. PROGRESS TRACKING See exactly where you stand. Mastery percentages for Letters, Numbers, Punctuation, and Prosigns keep you motivated and focused on weak areas. TACTICAL DARK INTERFACE A modern aviation HUD-inspired design that's easy on the eyes during night study sessions. No clutter, no distractions - just clean tactical aesthetics built for focused learning. COMPLETELY OFFLINE No account needed. No permissions required. No internet connection necessary. Your progress saves locally. Learn morse code anywhere: on a plane, in the field, off the grid. NON-INTRUSIVE ADS Small banner ads only. No popup interruptions. No forced video ads breaking your focus mid-lesson. WHO IS THIS FOR? - Ham radio license exam candidates (Technician, General, Extra) - Student pilots and aviation enthusiasts - Preppers and emergency communication planners - Military and tactical hobbyists - Scouts working on merit badges - Puzzle lovers and lifelong learners Whether you're preparing for your amateur radio license exam, adding a skill to your emergency preparedness kit, or just love the elegance of the original digital communication system, Learn Morse Code gives you the tools to achieve real CW fluency. Download now and start your first lesson in under 10 seconds.

Sidetone is the ultimate app for anyone looking to learn Morse code (CW) from scratch or sharpen their existing telegraphy skills. Whether you're a curious beginner or a ham radio operator wanting to increase your speed, Sidetone offers the tools you need in a clean, modern, and ad-free interface. KEY FEATURES: • Learn with the Koch Method: Build your speed the right way. Sidetone uses the highly effective Koch method, which trains your ears to recognize characters at full speed from day one, preventing the bad habit of counting slow dots and dashes. • AI-Powered QSO Simulator: Train for the real world! Our smart simulator uses an external API to generate realistic radio contacts (QSOs). Practice sending and receiving exchanges just like on the actual bands, giving you the confidence you need before sitting down at the rig. • Intuitive Input: Send your Morse code using the app's responsive, circular key and get immediate visual and audio feedback on your timing. • No Login Required: Sidetone respects your privacy. Open the app and start practicing right away—no accounts or passwords needed. Sidetone is a passion project created for the love of amateur radio and coding. The app is completely free to use, but if you enjoy it and want to help support the server costs (and fuel the developer's coffee intake), there's a voluntary tip jar in the settings. Fire up Sidetone, put on your headphones, and start your CW journey today. 73!