G
Google Authenticator
Convenient for Google Account users; evaluate whether account sync fits your threat model.
iosandroid cloud-sync
Directory
Find authenticator apps by the tradeoffs that matter.
Browse reviewed options without treating 2FAApp as a mobile authenticator. This directory links out to official projects.
Find and compare authenticator apps before installing one.
Authenticator App Directory
Compare authenticator apps by backup model, platform support, import/export, privacy posture, and recovery fit.
Platform filtersBackup modelsOfficial links
Choose an authenticator with source-code transparency. Open Source Authenticator Apps
Find open-source authenticator apps with transparent code, backup options, and platform tradeoffs.
Open-source statusMaintenance notesImport/export
Find authenticator apps that work beyond a phone. Desktop Authenticator Apps
Compare authenticator options for Windows, macOS, Linux, and cross-device workflows.
Windows/macOS/LinuxEncrypted syncLocal storage
Separate safe local tools from risky browser-based secret storage. Browser Authenticator Tools
Understand browser extensions, local web tools, and developer-only TOTP testing utilities.
Extension risksLocal processingDeveloper testing
M
Microsoft Authenticator
Best when Microsoft account integration is desired; note that autofill and backup behavior are separate product areas and may change independently.
iosandroid cloud-sync
2
2FAS
Open-source posture and optional backup model make it strong for users who want transparency.
iosandroidbrowser open source cloud-sync
P
Proton Authenticator
Good fit for users who want encrypted sync and desktop support from a privacy brand.
iosandroidwindowsmacos open source cloud-sync
E
Ente Auth
Strong transparency and cross-device coverage; review account recovery model before relying on sync.
iosandroidwindowsmacos open source cloud-sync
A
Aegis Authenticator
Excellent for users who want local control and are willing to manage their own backups.
android open source export-only
A
Authy
Convenient backup model but more account-dependent than local-only apps; Authy Desktop has reached end-of-life, so migration planning should focus on the mobile app.
iosandroid cloud-sync
B
Bitwarden Authenticator
Avoid storing passwords and TOTP for the same account in one place unless that fits your risk model.
iosandroid open source vendor-managed
R
Raivo OTP
Check current maintenance status and ownership before adopting for high-risk accounts.
ios open source export-only
K
Keeper Authenticator
Best evaluated as part of a broader Keeper deployment rather than a standalone TOTP app.
iosandroidweb cloud-sync
1
1Password
Convenient, but storing password and TOTP together changes the second-factor separation model.
iosandroidwindowsmacos cloud-sync
Y
Yubico Authenticator
Strong separation model, but you must plan spare keys and recovery before losing hardware.
iosandroidwindowsmacos hardware-backed
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