Personal 2FA is described as '🔐 Personal 2FA - Secure, encrypted TOTP authenticator with multi-format import/export, OpenSSL compatibility, and bilingual support (ES/EN)' and is an app. There are more than 50 alternatives to Personal 2FA for a variety of platforms, including Android, iPhone, iPad, Android Tablet and Linux apps. The best Personal 2FA alternative is KeePass, which is both free and Open Source. Other great apps like Personal 2FA are Aegis Authenticator, Proton Authenticator, Ente Auth and Bitwarden Authenticator.