XX Messenger

Active

Country: Switzerland (CH)
Founded: 2021
Developer: xx network
Pricing: Free
Open source: Yes
Platforms: iOS, Android

Indexes

Encrypted Messaging

Overview

xx Messenger is a mobile messaging application built on the xx network, a decentralized blockchain. It enables text messaging, group chats, and sharing of photos and audio files with end-to-end encryption, metadata shredding via cMix technology, and quantum-resistant cryptography. Designed for users prioritizing privacy, it operates without requiring phone numbers or emails, using local nicknames or QR codes for contacts, and routes messages through random nodes in over 80 countries.

Key Features

End-to-End Encryption - Provides quantum-resistant encryption for message content.
Metadata Shredding - Uses cMix to mix and shuffle messages across nodes, preventing linkage of senders and receivers.
Decentralized Network - Messages route through at least five random nodes from hundreds worldwide, with no central authority.
Group Chats - Supports group messaging functionality.
Media Sharing - Allows sending photos and audio files.
Optional Profiles - Uses local nicknames or QR codes; public profiles optional and not required.
No Phone/Email Signup - Signup uses pseudonyms without linking to personal identifiers.

Pricing

Plan	Price	Includes
Free	Free	Unlimited messaging, group chats, media sharing, full privacy features.

Platforms & Requirements

Available on iOS and Android via app stores or APK downloads. No desktop or web versions mentioned. Operates on standard mobile hardware with network access.

Integrations & Ecosystem

xx network blockchain
xxDK for decentralized communications
QR code contact sharing
Public profile user discovery (optional)

Alternatives

App	Difference
Signal	Centralized servers with phone number signup; lacks metadata shredding and quantum resistance.
Session	Onion routing for anonymity but no quantum-resistant crypto or cMix metadata shredding.
Element (Matrix)	Federated servers, customizable but retains more metadata without quantum security.
WhatsApp	Proprietary with metadata collection by Meta; standard encryption without quantum resistance or decentralization.

Reputation

xx Messenger is recognized for pioneering metadata shredding and quantum-resistant encryption in a fully decentralized setup, appealing to privacy advocates. Developed by cryptographer David Chaum's team, it gains credibility from blockchain transparency and open-source code. Criticisms include potential usability hurdles from decentralization, like slower message delivery, and limited adoption compared to mainstream apps. As of 2026, it maintains a niche but active user base focused on long-term security.

Sources (9)