T2DECODE icon

T2DECODE

Association TUTODECODE
Security Science & Education
Version
1.0.3
Size
20.8 MB
Requires
Android API 24+
4.5 / 5 · 5,633 ratings 0 downloads

Updated Sep 22, 2026

Quick answer

Offline interactive learning platform for IT, Cybersecurity, and Networking.

F-Droid repository metadata

Note: The application interface is currently in French only.

T2DECODE is a local-first learning platform designed for IT enthusiasts, cybersecurity students, and network administrators.

Features: - Privacy-focused: Fully functional offline, no telemetry, no tracking, and includes a global offline mode. - Interactive Labs: Network, System, Cloud, and Cryptography simulators. - Local AI Assistant: Integrate with local Ollama models (Phi-3, Llama 3) for an air-gapped AI tutor. - P2P Communication: GhostLink allows local LAN encrypted communication without servers. - Offline Tools: Built-in utilities (Subnet calculators, Hash generators, CRON helpers, and more). - Network Diagnostics: Optional real network tools (ping, DNS lookup, TCP connect diagnostics). - Optional Sync: Download additional course modules directly from the official GitHub repository.

What’s new

How to install

  1. Download the APK from the button at the top of this page.
  2. Allow “Install unknown apps” for your browser or file manager only, not for every app.
  3. Open the downloaded file and confirm the installation.
  4. If installation fails with “App not installed,” remove an earlier build of the same app first. A signature conflict is the usual cause.

Data safety

  • Every file is checked against its published SHA-256 before it is listed.
  • Files are scanned for malware on every update.
  • The permissions each app requests are listed on its own page.
  • Read the full safety policy for how we test, flag, and delist files.

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