Messaging
Session
Anonymous messaging for journalists, activists, and privacy-conscious users
Session is a messaging app that doesn't require a phone number or email. It uses onion routing to protect your privacy and keep your identity anonymous.
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Who is this for?
✓ Good for you if:
- • You need strong anonymity and protection
- • You don't want to share your phone number
- • You're a journalist or activist in a high-risk environment
- • You want messaging without central servers
- • You prioritize privacy over convenience
⚠ Think twice if:
- • You need video calling (Session only supports voice snippets)
- • You want the fastest message delivery (onion routing adds latency)
- • You need to message people who only use mainstream apps
- • You're not comfortable backing up your Session ID for recovery
- • You prefer apps with larger user bases
Overview
Session is a messaging app that's like Signal, but you don't need a phone number to use it. Instead, Session gives you an anonymous ID, so you can chat without revealing who you are. All your messages are encrypted, meaning only you and the person you're talking to can read them. Session doesn't collect your data, doesn't track you, and doesn't store your messages on central servers. Instead, it uses a decentralized network, which makes it harder to track or shut down. Session includes features like group chats, file sharing, and disappearing messages. The app is free, open source, and particularly useful if you want to chat anonymously without giving out your phone number or email address.
Privacy highlight
End-to-end encrypted messaging without phone numbers. network, no , anonymous IDs. Strong privacy and anonymity.
Quick facts
- Country:
- Switzerland (Session Technology Foundation)
- Pricing:
- Free
- Platform:
- Android, iOS, Windows, Mac, Linux
- Technical:
- Intermediate
- :
- Yes
- :
- Minimal telemetry
- :
- No
- :
- No
- :
- Yes
Key features
- ["Encrypted messaging", "Onion routing for anonymity", "No phone number or email needed", "Group chats", "Voice snippets and file sharing", "Works on phones and computers"]
Security & encryption Click to expand
- Yes
- Encryption protocols
- Signal Protocol (Double Ratchet)
- keys are stored locally on devices. Session uses a modified version of the Signal Protocol with additional anonymity features. Keys are managed locally and never transmitted to servers in plaintext.
- Offline support
- No
Telemetry & tracking Click to expand
- Minimal telemetry
- No
- Session does not collect data. The service does not track users, collect usage statistics, or monitor message activity. Session does not log IP addresses and does not use or tools. The application is designed for maximum privacy and anonymity with no . Session operates on a network, reducing the ability to track users.
Jurisdiction & compliance Click to expand
- Session is developed by the Oxen Project. The service operates on a decentralized network, so there is no central data residency. Session does not retain message content on servers, so there is minimal data residency concern. The service operates under various jurisdictions depending on the network nodes used.
- Session does not retain message content on servers. Messages are delivered through the network and are not stored centrally. The service does not retain user data, message content, or . Session does not log IP addresses. Users can delete their accounts and all associated data at any time. The service operates on a network with minimal .
- Legal frameworks
- GDPR, CCPA (where applicable)
- Revenue sources
- Donations, Grants
Editorial signals Click to expand
- 88
- Trust score
- 88
- Trust breakdown (0–10)
- Encryption: 95, Audits: 80, Open source: 90, Telemetry: 100, Jurisdiction: 100, Transparency: 85, Trackers: 100
- Editorial notes
- Usability: 85, Performance: 80, Family friendly: 85
User experience Click to expand
- Signup requirements
- none
- Onboarding difficulty (1-5)
- 2
- Accessibility features
- Screen reader support, available in 70+ languages
Backup & portability Click to expand
- Yes
- Migration tools
- Session supports data export for backups
- Session ID-based recovery
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