![]() ![]() Signal's software is free and open-source. It is developed by the non-profit Signal Foundation and its subsidiary, Signal Messenger LLC. The application uses a centralized computing architecture, and is cross-platform software. Communication may be one-to-one between users, or for group messaging. The instant messaging function includes sending text, voice notes, images, videos, and other files. ![]() ![]() Signal is an encrypted messaging service for instant messaging, voice, and video calls. ![]()
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