Mobile app · Security & privacy

Flauth

Privacy-first, open-source TOTP authenticator for 2FA token management.

Completely free
Windows, macOS, Linux, Android and iOS
Open source

Ad-supported exit link (Clictune): an intermediate page may show for a few seconds before the official website. Direct link to the website, no intermediate page

Download for Android (F-Droid)

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: Completely freeconfirmed 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: Windows, macOS, Linux, Android and iOSEstablished by Android: F-Droid · iOS: Unspecified source · Linux: Unspecified source · macOS: Unspecified source · Windows: Unspecified source
Publisher: Jiacai Liu
Latest version: 1.1.0 (17 May 2026)
Latest activity: 17 May 2026
Source code: github.com/jiacai2050/flauth

Overview

Flauth is a two-factor authentication mobile app, available on Windows, macOS, Linux, Android and iOS.

Features described in its GitHub repository and on its official website: sync across devices.

Services and protocols mentioned: WebDAV.

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

“A privacy-first, fully open-source TOTP authenticator.” — official website, 10 November 2026
“It provides a simple and lightweight solution for managing your 2FA (Two-Factor Authentication) tokens.” — F-Droid, 10 November 2026
“WebDAV Sync : Seamlessly sync your data with your private cloud (Nextcloud, Nutstore, etc.).” — official website, 10 November 2026

At a glance

All of Flauth is free: no feature is locked behind a paid plan, and its code is open.

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

Sources and checks

Facts collected from Unspecified source (platforms) — 9 November 2026
Facts collected from F-Droid (credit card, source code, publisher, 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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