MorseScope: Code & Audio

Encode, Decode & Practice

Free · In‑App Purchases

Decode Morse from sound or flashing light. MorseScope decodes audio, light, and written Morse offline on iPhone and iPad. AUDIO AND WRITTEN MORSE • Decode live audio with automatic carrier detection. Free Farnsworth detection handles longer letter/word gaps in live and imported audio, showing character and effective WPM separately. • Import WAV, MP3, M4A or AAC; try the sample or translate written Morse. • Play recordings with timed text. Inspect confidence and Morse, seek to characters, and correct or restore text. • Decoder Pro adds synchronized spectrograms, character alternatives, carrier tuning, character/effective WPM locks, sensitivity, and filtering, plus a ten-second live waterfall. • Keep audio-decoding results in the local Session Library. Source audio and graph data are not saved there. Light-decoding results stay in memory only. APPLE WATCH AUDIO DECODER Decode Morse with the Watch microphone and read text and character/effective speeds on your wrist. Keep the app open near a clear tone; no nearby iPhone is needed. One Premium subscription or lifetime purchase covers iPhone, iPad and Apple Watch. LIGHT DECODER Aim the rear camera at one flashing light. Move the target by touch or accessible controls, allow calibration, and follow or copy the decoded text. Start at 5–7 WPM with a steady phone and a clear source. Lighting, distance, movement, display flicker, and camera timing affect reception. This is for learning and short messages, not emergencies. Camera permission is requested only on Start Camera; no images or video are saved or uploaded. ENCODE AND SEND Turn text into International Morse, play or copy it, and export WAV/M4A audio. Send visible Morse through Screen Flash or the rear Flashlight at up to 7 WPM, without a 60-second cutoff. Haptic output supports transmissions up to 60 seconds. Stop visible output if it causes discomfort. PRACTICE AT YOUR PACE Learn with beginner lessons, Koch groups, Farnsworth spacing, callsigns, prosigns, Q-codes, QSO exchanges, custom drills, WPM ladders, and sending practice. Today's Practice uses spaced reviews. Repeat recording segments or turn decoded text into clean listening exercises with Practice this. Koch progress is preserved. FREE AND PREMIUM Free includes text conversion, beginner and Koch learning, daily practice, selected-character drills, the Send key, Callsigns, and character correction/restore. Free audio playback supports 60 seconds per transmission. Microphone and light decoding allow 30 seconds per session after the first signal lock; later signal loss does not pause that allowance. Free imported files may be up to 30 seconds. Start another free live session whenever you wish. Premium unlocks longer audio playback and decoding, light decoding without a session time limit, WAV/M4A export, Decoder Pro, the complete Session Library, advanced coaching and history, Guided Sending, signal conditions, saved custom presets, and WPM ladders. Choose a weekly auto-renewing subscription or one-time lifetime purchase. Both unlock the same features; localized prices appear in the app. PRACTICAL LIMITS Use a clear 300–2,000 Hz audio carrier. Imports support common uncompressed mono/stereo PCM WAV, MP3, and unprotected AAC in M4A or ADTS; protected audio and ALAC are unsupported. Premium imports support up to 60 minutes/1 GiB, and audio playback up to 60 minutes. Audio export remains limited to 8 minutes. Camera capture runs in the foreground and stops for interruptions, frame stalls, or excessive heat, including with Premium. PRIVATE BY DESIGN Core processing stays on your device. No account, ads, tracking, or analytics. Microphone samples stay in bounded memory and are discarded on Stop. Network access is used for App Store purchases and subscription management. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy: https://whitewhalesoft.com/apps/moorsecodeaudiodecoder/privacy Support: zhaoxiaojian@hotmail.com

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New in Version 2.7 • Decode nearby Morse audio directly on Apple Watch, even when your iPhone is not nearby. • Read decoded messages and character/effective speeds on your wrist. • Improved decoder session reliability.

The developer, 小健 赵, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Seller
    小健 赵
    Size
    12 MB
    Category
    Utilities
    Compatibility
    Requires iOS 17.0 or later.
    • iPhone
      Requires iOS 17.0 or later.
    • iPad
      Requires iPadOS 17.0 or later.
    • Mac
      Requires macOS 15.0 or later.
    • Apple Watch
      Requires watchOS 10.0 or later.
    Languages
    English and 11 more
    • English, French, German, Indonesian, Italian, Japanese, Portuguese, Russian, Simplified Chinese, Spanish, Traditional Chinese, Vietnamese
    Age Rating
    4+
    In-App Purchases
    Yes
    • Premium Weekly $1.99
    • Premium Lifetime $9.99
    Copyright
    © 2026, ZHAO XIAOJIAN