Mobile app · Security & privacy

Koofr Vault

Open source, client-side, zero-knowledge encrypted storage application by Koofr.

Free, with trade-offs
Android
Open source

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Download from the official source

Link to the official download page, ad-supported (Clictune): an intermediate page may show for a few seconds. Direct link to the download

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Geographic availability: No geographic restriction found in our sources; availability is not checked country by country.

Technical details

Pricing: Free, with trade-offsconfirmed by F-Droid
License: MIT — Open source (permissive)confirmed by F-Droid
Open source: Yes
Commercial use: Yesconfirmed by F-Droid
Account required: not documented
Credit card required: Noconfirmed by F-Droid
Watermark: Not applicable
Ads: No
Platforms: AndroidEstablished by Android: F-Droid
Latest version: 0.1.26 (16 August 2026)
Latest activity: 16 August 2026
Source code: github.com/koofr/vault

Overview

Features described in its F-Droid listing and on its official website: end-to-end encryption and data encryption.

Overview written by LicitPro from the documentation published by the authors and the cited sources; we have not tried the resource ourselves.

Excerpts that establish this information

“Koofr Vault is an open source, client-side, zero-knowledge encrypted storage application by Koofr, offering an extra layer of security for your files.” — official website, 10 November 2026
“Koofr Vault is an open source, client-side, zero-knowledge encrypted storage application by Koofr, offering an extra layer of security for your files.” — official website, 10 November 2026

At a glance

Koofr Vault is free, with trade-offs: it relies on a non-free online service.

Its licence (MIT) is a permissive open source licence: use, modification and redistribution are allowed, including in commercial projects.

Strengths

Open source code
No advertising
Commercial use allowed

Weaknesses

Flagged by F-Droid: relies on a non-free online service

Sources and checks

Facts collected from F-Droid (credit card, source code, licence, free status, platforms, ads, commercial use, version) — 6 November 2026
Last technical check: 6 November 2026
Description from F-Droid — F-Droid (citation courte)

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