Almost
This app has potential, but despite the misleading screenshots, there is never any space added in between words. That means that anything that is keyed is all run together in one continuous mess.
Free
In-App Purchases
Lowest price: $1.99 a year ago (-%)
Price history
About
This application uses AI for high-accuracy Morse code decoding. It offers real-time signal processing for steady performance in noisy conditions. A free version allows for short decoding sessions, while a paid upgrade provides unlimited use and advanced features.
✓AI-driven decoding
✓Real-time signal processing
✓Adjustable speed and thresholds
✓Decodes letters, numerals, and prosigns
✓Built-in microphone input
✓USB-C audio input (full version)
✓Scrollable decoded text
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What's New in CW Decoder
3.39
October 4, 2026
V3.39 ・Added support for Macs with Apple silicon. ・Improved font settings on Mac for users who have unlocked the paid features. ・On models where microphone input is available only through USB audio, an in-app purchase is required to unlock microphone input.
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Subscriptions & In-App Purchases
$2.99
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FAQ
Does CW Decoder have ads?
No, CW Decoder does not contain advertisements. The application is free to try with an option to purchase a full version for enhanced features.
How accurate is CW Decoder?
CW Decoder boasts high accuracy, utilizing an AI model for decoding and sample-by-sample signal processing to maintain stability even in noisy environments.
What are the limitations of the free version of CW Decoder?
The free version of CW Decoder limits decoding sessions to 2 minutes and uses a standard font. It also only supports audio input from the built-in microphone.
What benefits does the full version of CW Decoder offer?
The full version of CW Decoder removes the time limit for decoding sessions, offers font customization, and enables USB-C audio input for direct connection to radio equipment.
What is the supported speed range for CW Decoder?
CW Decoder supports a speed range of 5 to 50 WPM, with automatic adjustments for speed and thresholds to adapt to varying signal conditions.
Can CW Decoder decode prosigns and run-together characters?
Yes, CW Decoder is designed to decode letters, numerals, punctuation, prosigns, and characters that are sent run together, mimicking real operator transmissions.
What audio input options are available for CW Decoder?
CW Decoder supports audio input via the built-in microphone. The full version also allows for direct USB-C audio input from compatible devices, automatically switching between sources.
What is the detection range for CW Decoder?
CW Decoder locks onto the strongest signal within a detection range of 400 Hz to 900 Hz, which is the typical frequency range for CW transmissions.
