What is Signal?
Signal is a free messaging app that prioritizes your privacy and security. It allows you to send messages, make calls, and video chat with others, all with end-to-end encryption by default.
What Makes Signal Stand Out
- End-to-End Encryption: Every message, call, and video chat is secured so only you and the person you're communicating with can see or hear what's sent.
- Minimal Data Collection: Signal collects almost no information about its users. They don't store your contacts, your message history, or even your IP address.
- Open Source: The app's code is publicly available, meaning security experts can review it to ensure it's as safe as it claims.
Who Should Use Signal?
Anyone concerned about their online privacy should consider Signal. It's ideal for personal conversations, sensitive discussions, or simply if you prefer a messaging service that doesn't track your activity.
Is Signal Free?
Yes, Signal is completely free to download and use. It's funded by donations and grants, not by selling your data or showing ads.
Signal Alternatives in 2026
Each one takes a different angle on the same core idea — pick based on what Signal is missing for you.
Offers cloud-based messaging with large group support and channels for broadcasting.
Widely used for encrypted messaging and calls, integrated with phone contacts.
A paid, end-to-end encrypted messenger prioritizing anonymity and data protection.
Provides secure messaging, voice, and video calls for individuals and teams.
A secure messenger built on the open Matrix protocol for interoperability.
Offers free encrypted calls and messages with a large international user base.
Frequently Asked Questions
What exactly does Signal protect you from?
Signal addresses Messaging, Encrypted — one of the most common ways personal data gets exposed without users realizing it. It's practical, trustworthy, and free to use. Start at signal.org.
Is Signal open-source or independently audited?
Signal is transparent about its Messaging, Encrypted implementation. Check signal.org for audit reports, source code, or privacy policy — the level of transparency is one of the reasons it made our list.
What are the best alternatives to Signal?
If Signal doesn't fit your specific workflow, our curated Privacy & Security directory has hand-picked alternatives — each evaluated on the same criteria. Filter by Messaging, Encrypted to find tools with similar strengths.