Millions of people use Signal every day for free and instant communication all over the world. Send and receive high fidelity messages, participate in HD voice / video calls, and explore a growing set of new features that help you stay connected. Signal’s advanced privacy-preserving technology is always on, so you can focus on sharing the moments that matter with the people who matter to you.
• Say Anything – Industry-leading end-to-end encryption (powered by the open source Signal Protocol ™) keeps your conversations safe. Privacy is not an optional mode – it’s just the way Signal works. Every message, every call, every time.
• Go fast – Messages are delivered quickly and reliably, even over slow networks. The signal is optimized to operate in the most constrained environment possible.
• Feel Free – Signal is a completely independent 501c3 non-profit organization. Development is taken care of by users like you. No advertising. No trackers. No kidding.
• Be yourself – You can use your existing phone number and address book to communicate securely with your friends.
• Express yourself – Whether they live across town or across the ocean, Signal’s improved audio and video quality will make your friends and family feel closer.
• Whisper in Shadows – Switch to the dark theme if you refuse to see the light.
• Familiar sound – Choose personalized alerts for each contact or turn noises off completely. Simon & Garfunkel wrote a hit song about it in 1964, and you can experience the sound of silence whenever you want by choosing “None” as your notification ringtone.
• Picture this – Use the built-in image editing functions to sketch, crop and flip your outgoing photos. There’s even a text tool so you can add more words to the 1000s your picture is already worth.
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