Mobile app · Utilities & files

SOS Flashlight: Advanced Morse Code Tool

Turn your phone into a Morse code device, to transmit emergency messages.

Completely free
Android
Open source

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Download from the official source

Link to the official download page, ad-supported (Clictune): an intermediate page may show for a few seconds. Direct link to the download

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Geographic availability: No geographic restriction found in our sources; availability is not checked country by country.

Technical details

Pricing: Completely freeconfirmed by F-Droid
License: GPL-3.0 — Open source (copyleft)confirmed by F-Droid
Open source: Yes
Commercial use: Yesconfirmed by F-Droid
Account required: not documented
Credit card required: Noconfirmed by F-Droid
Watermark: Not applicable
Ads: No
Platforms: AndroidEstablished by Android: F-Droid
Publisher: Weil Jimmer
Latest version: 1.0.3 (5 September 2025)
Latest activity: 5 September 2025
Source code: github.com/WeilJimmer/SOSFlashlightApp

Overview

SOS Flashlight: Advanced Morse Code Tool is a flashlight mobile app, available on Android.

Overview written by LicitPro from the documentation published by the authors and the cited sources; we have not tried the resource ourselves.

Excerpts that establish this information

“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.” — F-Droid, 10 November 2026

At a glance

SOS Flashlight: Advanced Morse Code Tool is completely free: it is open source software, and every feature is available without paying or subscribing.

Its licence (GPL-3.0) is a copyleft open source licence: you may use, study, modify and redistribute it, including commercially; modified versions must keep the same licence.

Strengths

Open source code
No advertising
Commercial use allowed

Sources and checks

Facts collected from F-Droid (credit card, source code, publisher, licence, free status, platforms, ads, commercial use, version) — 7 November 2026
Last technical check: 7 November 2026
Description from F-Droid — F-Droid (citation courte)

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