Apps similar to Open Authenticator by Skyost include Bitwarden, which is open source with a free version. Other options are Aegis Authenticator, Proton Authenticator, Ente Auth and Bitwarden Authenticator. There's no shortage of Authenticators like Open Authenticator by Skyost, with more than 25 alternatives for Android, iPhone, iPad, Linux and Mac.
OVault is a super simple OTP app that lets you view and manage OTPs for all your accounts. Set up OTPs by scanning QR codes with your devices Camera App, or by manually providing the OTP secret to the app.
United Kingdom
Keysmith is a token generator for your two-factor authentication (2FA) logins. It supports time and hash-based one-time passwords (TOTP/HOTP).
Germany
EU
OTP authenticator app for managing your 2FA / OTP codes on iPhone, iPad, Mac and Apple Watch.
Australia
2fast (acronym for two factor authenticator supporting TOTP) is the first free, open source, two factor authenticator for Windows and Android with the ability to store the sensitive data encrypted at a place of your choice instead of a 3rd party cloud location.
Encrypted Windows app for managing 2FA codes with AEGIS-256 and Argon2id, supporting Windows Hello, portable use, multilingual interface, token import/export, QR code/manual entry, generic TOTP, local storage, and dark mode interface for enhanced security.
GermanyEU
Chronos is an open-source two-factor authentication (2FA) app designed to deliver robust security and reliable backup features. It supports both time-based (TOTP) and counter-based (HOTP) authentication methods.
Singapore
Open-source Android authenticator supporting TOTP and HOTP, material design UI, backup and restore via files, Google Drive, or Android backup, works offline, privacy-focused, no analytics or ads, suitable for securing logins on popular services.
Clockode is a minimal, and offline-only TOTP code generator that stores your authentication secrets in an encrypted local vault, keeping your two-factor codes private and accessible without needing an internet connection.
Authman helps you manage your 2-step authentication tokens on iOS, Android and desktop, and securely sync them between devices.
United States
Open-source web app for personal security checklists and habit tracking with task prioritization, profile-based progress, minimal interface, data privacy, no analytics, and local storage for individual users, supporting multiple checklists and Docker deployment.
Türkiye
