Signal

Signal cover

Overview

Signal is a privacy-focused messaging application offering end-to-end encrypted text, voice, and video communication.

Development Efficiency and Usage Metrics

Metric	Value or Status
Communication Type	Messaging voice video
Encryption	End-to-end
Metadata Collection	Minimal
Platforms	Mobile desktop
Access Type	Application

Features

Ensures only the sender and recipient can read message content, even Signal cannot access it.

Protects real-time conversations from interception and surveillance.

Designed to store as little user metadata as possible.

Widely recommended by security experts and privacy advocates.

Ready to try it out?

Visit the official website to get started.

Review

“Signal is my preferred messaging app for personal and professional conversations. The end-to-end encryption gives me peace of mind, and the app itself is fast, clean and easy to use.

“As someone who often communicates about sensitive topics, Signal is essential. It’s open source, transparent about how it works and designed with security at its core.

“I switched to Signal because I wanted more control over my data, and I’ve stayed because it’s simply a great chat app.