Signal: Secure Messaging from the US
Signal is the gold standard for private messaging, developed by a non-profit foundation in the United States. Unlike WhatsApp or Telegram, which are owned by big tech corporations, Signal is funded entirely by donations and operates on a strict "no data" policy. It uses end-to-end encryption by default for everything—messages, calls, and even metadata—ensuring that not even Signal can see who you talk to or when.
There are no ads, no trackers, and no data mining. Your phone number is the only identifier, and even that can be hidden in some configurations. While it is based in the US, its open-source code and non-profit status make it one of the most trusted tools globally for journalists, activists, and privacy-conscious individuals.
Available on iOS, Android, and desktop, Signal syncs seamlessly across devices. It is the ultimate choice for anyone who refuses to let their conversations become a product.
Below you will find information on how to download the app, verify your safety numbers, and start communicating securely.
Funding Model
Signal is completely free to use for everyone, forever. It is funded entirely by donations and grants from a non-profit foundation in the United States. There are no subscription fees, no premium tiers, and no advertisements. Because it doesn't rely on selling user data or profit, your privacy is never compromised for financial gain.
Registration
To start using Signal, download the app from your phone's app store (iOS or Android) or the Signal website for desktop. Installation is quick, but you will need to verify your identity with a valid phone number during setup. Unlike apps that require email, your phone number is the only requirement, though you can choose to hide it from most users once inside the app.
Desktop Version
Signal offers robust, official desktop applications for Windows, Mac, and Linux. You don't need to keep your phone connected to the internet to use the desktop app; instead, you link the two devices by scanning a QR code. Once connected, your messages, calls, and media sync instantly across all your devices while staying fully encrypted.
Use of the Application
Comprehensive tutorials and guides are available on the official Signal support site. These resources cover essential security features like adding safety numbers to verify contacts, setting up disappearing messages, managing group privacy settings, and blocking unwanted users. Whether you are new to secure messaging or an experienced user, Signal makes it easy to communicate safely.

