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Relatrix

An active knowledge-management and multi-modal note-taking platform.

Developer
Saad Ibra
License
Apache-2.0
Package
com.saadibra.graymatter
Category
Reading, Writing
Latest version
2.0.5 · Sep 22, 2026
Minimum Android
Android 7.0

Download 2.0.5

Description

Most knowledge-management tools are glorified bookmarks. You gather articles, highlight text, save links, and then forget everything. Relatrix changes that. Built on a single, uncompromising philosophy: Information only becomes knowledge when you engage with it through active reflection. Every resource you save is a starting point, not a destination. Relatrix provides a multi-modal toolkit to break down, question, and connect information across diverse formats.

Feature Overview:
• Topic Library: Organise your intellectual world into curated folders of resources. Visually organize topics with a fully customizable color picker. You can add web links, PDFs, markdown notes, and absolutely any kind of file as a resource.
• Multi-Modal Resource Timeline: A single chronological feed that unifies your reflections, annotations, and visual captures.
• Tag Management Hub: Manage, explore, and filter your resources across all topics using custom tags.
• Reflection-First Entry: When you save a PDF, web page, markdown note, or any other kind of file, Relatrix encourages you to capture an Opinion immediately.
• Knowledge Links & Tags: Cross-reference other resources, topics, or insights using [[double-bracket]] wiki-style links and organize entries with custom tags using a unified dropdown.
• PDF Reader & Annotation: Flip pages, highlight passages, create bookmarks, and perform web lookups.
• Note Editor: A minimalist markdown canvas designed for clarity.
• Relatrix 3D Knowledge Discovery: A live, physics-simulated 3D graph that renders the connective tissue of your knowledge base.

All versions

VersionReleasedMinimum AndroidSize
2.0.5 Sep 22, 2026 Android 7.0 28.6 MB
2.0.4 Sep 17, 2026 Android 7.0 28.6 MB
2.0.3 Sep 16, 2026 Android 7.0 28.6 MB
2.0.2 Sep 14, 2026 Android 7.0 28.6 MB
2.0.1 Sep 12, 2026 Android 7.0 28.6 MB
1.8 Aug 30, 2026 Android 7.0 28.5 MB
1.7 Aug 27, 2026 Android 7.0 28.5 MB

From the developer (GitHub)

APK files published by the developer on GitHub. They are signed by the developer and may not install over the other builds on this page (different signature). Links open github.com.

v2.0.5 · Sep 21, 2026
androidApp-release.apk 28.6 MB
v2.0.4 · Sep 15, 2026
androidApp-release.apk 28.6 MB
v2.0.3 · Sep 14, 2026
androidApp-release.apk 28.6 MB

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