Session Android is the official mobile client for Session, a privacy-first messaging protocol that enables secure, anonymous messaging without requiring phone numbers, email addresses, or centralized user accounts. Built natively for Android, the app lets users send and receive end-to-end encrypted text messages, voice notes, images, and attachments in both one-on-one and group chats, all while routing data through a decentralized onion-routing network designed to protect not just message content but also metadata like sender ID, timing, and network location. The Android client integrates seamlessly with Android’s notification system and background services so that you can stay connected without exposing your identity or compromising privacy, and it supports features such as message reactions, search within chats, profile and contact management, and local message storage encrypted at rest.

Features

  • End-to-end encrypted messaging
  • Metadata-resistant decentralized network routing
  • Anonymous accounts with no phone/email requirement
  • Group chats with media sharing
  • Android notification and background service support
  • Open-source security-focused implementation

Project Samples

Project Activity

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Categories

Messaging

License

GNU General Public License version 3.0 (GPLv3)

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Session for Android Web Site

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Additional Project Details

Operating Systems

Android

Programming Language

Kotlin

Related Categories

Kotlin Messaging Platform

Registered

2026-01-13