HELIO Morse Messenger

Send Messages with Light

Free · Designed for iPad. Not verified for macOS.

Turn text into light. HELIO sends and receives International and Japanese Morse code with a steady 7 WPM flash. HELIO turns text into Morse code and sends it as flashes of light. Choose International Morse or Japanese Morse and use two devices to communicate with letters, numbers, hiragana, and katakana. KEY FEATURES • Switch between International and Japanese Morse code • Normalize hiragana, katakana, voiced, and semi-voiced marks for Japanese Morse • Transmit at a steady 7 WPM • Receive and decode light signals with the camera • Resend messages from your history • Try the receiving flow with Demo Mode when a camera is unavailable HOW TO USE 1. On the sending device, choose a Morse mode and enter a message. 2. On the receiving device, choose the same mode and start listening first. 3. Start transmission and point the flashing screen toward the receiving camera. SAFETY HELIO uses flashing light. Do not use the app if you are sensitive to flashing lights. Check your surroundings and never use it while driving or in unsafe situations.

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

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    Seller
    • ge-nie inc.
    Size
    • 19.1 MB
    Category
    • Utilities
    Compatibility
    Requires iOS 13.0 or later.
    • iPhone
      Requires iOS 13.0 or later.
    • iPad
      Requires iPadOS 13.0 or later.
    • iPod touch
      Requires iOS 13.0 or later.
    • Mac
      Requires macOS 11.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Languages
    • English and Japanese
    Age Rating
    4+
    Copyright
    • © ge-nie inc. 2026-