Open Authenticator

2.1.0

Skyost

4.33

42 reviews

1,000+
Downloads

Free

An open-source & cross-platform TOTP (Time-Based One-Time Password) app

4.33 · 42 reviews · 1,000+ downloads

Download from Google Play iOS version

Open Authenticator is a free, open-source TOTP app that works across Android, iOS, macOS and Windows. It emphasizes local use and cross-device syncing, providing a fast, copy-friendly interface to manage your 2FA tokens.

Pros & Cons

Open-Source & Free for local use
Cross-Platform Sync across devices
Fast, copy-friendly main page for TOTPs
Transparent development with regular updates

Limited emphasis on broader MFA features beyond TOTPs
QR code handling and offline/backup options are not highlighted
Lacks explicit authentication and multi-factor terminology relative to some competitors

About Open Authenticator

Open Authenticator is a tools app developed by Skyost.

Download Statistics

Open Authenticator has been downloaded 4.7 thousand times. In the last 30 days, the app was downloaded 270 times.

User Ratings

Open Authenticator is rated 4.33 out of 5 stars. The rating is based on 42 ratings.

App Information

Open Authenticator is FREE to download. The APK download size is 40.01 MB. The latest version available is 2.1.0. The last update was on June 29, 2026.

Technical Requirements

The app has a content rating of Everyone. The app has been available on Google Play July 2024.

Description

🔒 Protect your online accounts with Open Authenticator.

More data about Open Authenticator

Price	Free to download
Total downloads	4.7 thousand
Recent downloads	270
Rating	4.33 based on 42 ratings
Ranking	Not ranked
Version	2.1.0
APK size	40.0 MB
Number of libraries	?
Suitable for	Everyone
Ads	NO ads

App Performance Report

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Alternative downloads for the Open Authenticator app

Open Authenticator compared with similar apps

Common keywords of similar apps

Open Source Https Cross Platform Totps Unauthorized Free Cost Tokens Backend User Openauthenticator Authenticator Time App Accounts Totp Online Security Based Password Protect Access Features Easy

Keywords missing from this app

Authentication Secure Codes Factor Account Passwords Backup Data Qr Code Mfa Otp Protection Generate Securely Services Verification Support Offline Digital Manage Google Device Multi Simple Devices Add Reliable Login Works Privacy Designed Experience Restore Layer Step Key

Google Play Rating history and histogram

Rating history

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Downloads over time

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Open Authenticator has been downloaded 4.7 thousand times. Over the past 30 days, it has been downloaded 270 times.

Changelog of Open Authenticator

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Developer information for Skyost

Skyost

me@skyost.eu

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Comments on Open Authenticator for Android

★★★★★ Recovery E-mail · Sep 17, 2024

I Love This! Open Source Authentication App (We know Any open source projects can be great for security and privacy and just by its name of being open source I don't know why we just instantly get a relief and can trust it with closed eyes) Anything which is made with open sourcing their codes shows how confident and caring they are with user's data protection and encryption protocols all just to keep us ACTUALLY SAFE! Then some bigger companies says it JUST TO SAY IT :) OPS Devs = Our FMLY.

Google Play Rankings for Open Authenticator

This app is not ranked

Technologies used by Open Authenticator

9 permissions

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Trust & Safety: Permissions include CAMERA (QR code scanning), INTERNET/NETWORK_STATE, READ_EXTERNAL_STORAGE, and biometric options (USE_BIOMETRIC, USE_FINGERPRINT). Billing permission is declared though the app is Free. The open-source nature and transparency of the project support a considered trust/safety profile.

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