SOS Flashlight Morse Code Tool

1K+
Downloads
Content rating
Everyone
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About this app

SOS Flashlight App transforms your smartphone into a powerful Morse code signaling device, capable of transmitting emergency messages or custom text through multiple channels simultaneously.

Features

- Signal Transmission Methods
- Flashlight: Utilizes your device's camera led flashlight to transmit visual signals.
- Vibration: Sends tactile signals through device vibration.
- Audio: Generates clear audio tones at 700Hz frequency.
- Screen Light: Maximizes screen brightness to create visual signals in darkness.
- Core Capabilities
- Flashlight Widget: You can add a convenient icon to your home screen for quick one-tap flashlight control.
- Background Service: Continue signaling even when the app is minimized or screen is locked.
- Message Customization: Send any custom message in Morse code.
- Adjustable Speed: Choose from slow, medium, fast, or custom transmission speeds.
- Morse Code Decoder: Convert received Morse code into readable text.
- User Preferences: Independently toggle each signaling method based on your needs.

Usage

- Emergency SOS: Press the SOS button to immediately begin transmitting the international SOS signal (... --- ...).
- Custom Message: Enter your text in the input field and press "Send" to convert and transmit.
- Decoder: Navigate to the decoder screen to translate incoming Morse code signals.
- Settings: Customize transmission speed and toggle different signaling methods.

Contribute

Contributions are welcome! Feel free to open issues or submit pull requests on our GitHub repo.

License

This project is licensed under the GNU General Public License (GPLv3) - see the LICENSE file for details.

Source

https://github.com/WeilJimmer/SOSFlashlightApp.git
Updated on
Sep 3, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
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No data collected
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What’s new

1. Added: Screen Light color selection feature, now you can change the screen light color through the color palette.
2. Fixed: Allow the use of longer time intervals to enable normal vibration for devices that cannot vibrate in extremely short periods of time.

App support

About the developer
徐字威
me@weils.net
自強街37巷53弄49號 平鎮區 桃園市, Taiwan 324

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