Messaging
Signal
Private messaging for everyday users who want strong without complexity
Signal offers a privacy-conscious alternative in the messaging space, with a stronger focus on data protection than many mainstream tools.
Recommended alternatives
Who is this for?
✓ Good for you if:
- • You want easy-to-use encrypted messaging for daily conversations
- • You need to communicate securely with friends and family
- • You want an app that works like WhatsApp but respects your privacy
- • You need group messaging with
- • You want disappearing messages for sensitive conversations
⚠ Think twice if:
- • You need complete anonymity (Signal requires a phone number)
- • You want to avoid all collection (Signal collects minimal )
- • You need messaging (Signal uses central servers)
- • You want to message people who only use mainstream apps
- • You need advanced anonymity features like onion routing
Overview
Signal is a privacy-focused messaging application that provides end-to-end encryption for messages, voice calls, and video calls. The service uses the Signal Protocol, which provides forward secrecy and post-compromise security, ensuring that even if encryption keys are compromised, past messages remain secure. Signal does not collect user data, does not track users, and does not store message content on servers. The service requires a phone number for registration but supports usernames for privacy. Signal includes features like disappearing messages, group messaging with encryption, file sharing, and screen security. The application is open source (AGPL-3.0), allowing security audits, and is developed by the Signal Foundation, a non-profit organization. Signal is free to use and funded through donations and grants. The service is based in the United States but operates with strong privacy protections and minimal data collection.
Privacy highlight
End-to-end encrypted messaging with Signal Protocol. No , no , . Strong with forward secrecy.
Quick facts
- Country:
- 🇺🇸 United States
- Pricing:
- Free
- Platform:
- Android, iOS, Windows, Mac, Linux
- Technical:
- Beginner
- :
- Yes
- :
- Minimal telemetry
- :
- No
- :
- No
- :
- Yes
Key features
- End-to-end encrypted messaging
- Voice and video calls with
- Group messaging with
- File sharing with
- Disappearing messages
- Username support (phone number privacy)
Security & encryption Click to expand
- Yes
- Encryption protocols
- Signal Protocol (Double Ratchet)
- keys are stored on the user's device. Signal uses the Signal Protocol which provides forward secrecy and post-compromise security. Keys are managed locally and never transmitted to servers in plaintext.
- Offline support
- No
Telemetry & tracking Click to expand
- Minimal telemetry
- No
- Ip no
- Signal does not collect data. The service does not track users, collect usage statistics, or monitor message activity. Signal does not log IP addresses and does not use or tools. The application is designed for maximum privacy with no . Signal routes all communication through its own servers but does not log or store message content.
Jurisdiction & compliance Click to expand
- Signal is operated by the Signal Foundation, which is based in the United States. The service operates servers in the United States and other countries. Signal does not retain message content on servers, so there is minimal data residency concern. The service operates under US privacy laws and complies with GDPR for European users.
- Signal does not retain message content on servers. Messages are delivered and then deleted from servers. The service retains minimal (phone numbers for account management) but does not retain message content, timestamps, or contact lists. Signal does not log IP addresses. Users can delete their accounts and all associated data at any time. The service operates under US privacy laws.
- Legal frameworks
- GDPR, CCPA
- Revenue sources
- Donations, Grants
Editorial signals Click to expand
- 85
- Trust score
- 90
- Trust breakdown (0–10)
- Encryption: 95, Audits: 90, Open source: 90, Telemetry: 100, Jurisdiction: 70, Transparency: 90, Trackers: 100
- Editorial notes
- Usability: 90, Performance: 85, Family friendly: 90
User experience Click to expand
- Signup requirements
- phone_number
- Onboarding difficulty (1-5)
- 1
- Accessibility features
- Add technical accessibility details after testing.
Backup & portability Click to expand
- Yes
- Migration tools
- Describe CLI, export/import, and migration flows after review.
- PIN-based account recovery
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