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Quaternion
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QQuaternion logo

Quaternion

Flathub·Communication & Collaboration

Quaternion is a cross-platform desktop instant messaging client for the Matrix protocol. Built with Qt, it provides a native interface for participating in Matrix rooms and networks. It is designed as a lightweight, straightforward client for users who prefer desktop applications over web interfaces.

Free
Linux
QQuaternion logo
Visit Flathub↗

Overview

3 features

In the Communication & Collaboration space, Quaternion takes a focused approach. It focuses on accessing Matrix-based chat networks from a native Qt desktop application. It is built as a consumer product for matrix users. Quaternion is free to use. Quaternion is available on Linux.

The Quotient Project builds and maintains Quaternion. Key capabilities include Matrix Protocol, chat, and cross-platform.

  • ✓Matrix Protocol
  • ✓Chat
  • ✓Cross-platform

Tags

matrix-clientim-clientqt-appchat-client

Built with & integrations

Runs on
Linux

Trust & compliance

LicenseProprietary
Verified signals
✓ HTTPS✓ Free tier

Recent events

Latest indexed changes and source events

  1. IndexedJul 24, 1:02 PM

    Quaternion verified by the PulseGate indexer

    Source: PulseGate indexerOpen ↗

Frequently asked questions about Quaternion

What does Quaternion do?
Quaternion focuses on accessing Matrix-based chat networks from a native Qt desktop application. It is catalogued under Communication & Collaboration on PulseGate.
Who is Quaternion for?
Quaternion is a consumer product built for matrix users.
Is Quaternion free?
Yes — Quaternion is free to use.
What platforms does Quaternion run on?
Quaternion runs on Linux.
Is Quaternion still maintained?
PulseGate's liveness checks currently classify Quaternion as active.
What are alternatives to Quaternion?
Similar tools tracked by PulseGate include CK4, Qwen3.5 27B, and Qwen3 VL 32B Instruct.CK4Qwen3.5 27BQwen3 VL 32B Instruct
Who makes Quaternion?
Quaternion is developed by The Quotient Project.

At a glance

Platforms
Desktop
Languages
English
First seen
Jul 24, 2026
Activity
🟢 Active
Status
🟢 Active
Built for
Matrix users
Model
B2C
Solves
Accessing Matrix-based chat networks from a native Qt desktop application.

Developer

The Quotient Project

Live coverage

Confidence
Medium · 70
Indexed
Jul 24, 2026
Lifecycle
Alive
Activity
Active
First seen
Jul 2026
Last seen
5d ago
Identity audit (10)
Entity ID
cmryya1g404gknxhtpqj8q4yl
Slug
quaternion-flathub-org
Lifecycle last checked
Jul 24, 2026
Verification state
Indexed for public listing
Claim / listing state
Unclaimed · listed: yes
Index status
Included in index
Latest evidence snapshot
Jul 24, 2026
Timeline basis
Indexed-at chronology (no inferred launch/funding milestones).
Last updated
Jul 27, 2026
Canonical URL
https://flathub.org/apps/io.github.quotient_im.Quaternion

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