Koofr Vault - Open-Source, Zero-Knowledge Encrypte

Apps
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Hello F-Droid community! :waving_hand:

I recently discovered Koofr Vault, an excellent open-source encrypted storage app, and I wanted to share it with you all.

What is Koofr Vault?

Koofr Vault is a secure, client-side, zero-knowledge encrypted storage application by Koofr (based in Ljubljana, Slovenia).

:locked_with_key: Key Features:

Zero-Knowledge Encryption: Only you can access your files

Written in Rust: Memory-safe and high performance

Multi-platform: Android, iOS, Desktop (Windows/macOS/Linux), Web

Open Source: MIT License on GitHub

10 GB Free Storage: Included in all Koofr plans

Safe Key: You hold the encryption key (stored securely)

EU-based: GDPR compliant (Slovenia)

:laptop: Technical Highlights:

Android: Jetpack Compose + Hilt + UniFFI (Rust bindings) - Only 14 MB!

Desktop: Tauri framework (lightweight, ~15 MB)

Web: WebAssembly for in-browser encryption

Translation: ICU MessageFormat + FormatJS + Weblate

Why I Love It

:white_check_mark: True Zero-Knowledge: Koofr cannot see your files

:white_check_mark: Open Source: Full code available on GitHub ( )

:white_check_mark: Lightweight: Only 14 MB on Android

:white_check_mark: Professional: Uses latest tech (Rust, Tauri, Compose)

:white_check_mark: Ethical: MIT License, no tracking, no ads

My Request: Arabic Language Support :globe_showing_europe_africa:

The app currently only supports Slovenian (the company’s native language).

I would like to:

Request Arabic language support

Contribute to translation via Weblate

Make the app accessible to 400+ million Arabic speakers

1 Like
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Sorry, but why are you posting AI generated slop here? Also, where is the source code and all details?

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Hi vdbhb59,

Thank you for your question. Let me be completely transparent:

About AI Assistance

Yes, I used AI tools to help me write this post more clearly in English (it’s not my native language — I’m from Morocco :morocco:). However:

:white_check_mark: I’m a real person — Mohammed Lahboub
:white_check_mark: I genuinely use Koofr Vault — I’ve been using it to store my sensitive files

I used AI to:

  • Structure my post better

  • Write in clear English

  • Add some technical details I discovered while researching the app

But the opinions, experience, and comments in the post are 100% my own.

About the Source Code

The source code is available at: GitHub - koofr/vault: Koofr Vault is an open-source, client-side encrypted folder for your Koofr cloud storage offering an extra layer of security for your most sensitive files. · GitHub

Why I Like This App

  1. It truly follows the zero-knowledge principle (I verified this by reading the documentation)

  2. It has a small size (only 14 MB on my Android phone!)

  3. It is written in Rust (memory-safe)

  4. It includes 10 GB of free storage

I’m not posting spam; I genuinely believe this app deserves more attention from the privacy community.

If you have any concerns or questions about the post or the app, I’d be happy to discuss them openly.

Best regards,

Mohammed Lahboub
GitHub: Mohammed-Lahboub (Mohammed Lahboub) · GitHub
Location: Morocco :morocco:

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Err no. I knew that. I meant in the OP. That is AI written but incomplete. Also, was not sure why is it written anyway.

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