Authy vs Zoho OneAuth

Authy is a free two-factor authentication app for Android and iOS that generates TOTP codes for online accounts. Users can scan QR codes from services including Facebook, Amazon, Google, Microsoft and Dropbox, then access tokens on a phone, tablet or Apple Watch. Codes are generated on the device, so a phone does not need an internet connection to access secured websites. Authy supports encrypted backups and synchronization across multiple devices. Access to tokens can be protected with Touch ID, a PIN or a password. New devices can be added through SMS, voice or approval from an existing device; users can also rename or remove lost or stolen devices and disable future app installations. Authy says it encrypts authentication data and cloud backups without retaining users’ backup passwords. That means a forgotten backup password cannot be recovered through Authy. Its listed free plan costs nothing and includes two-factor authentication, encrypted cloud backup and multi-device support.

Zoho OneAuth is a free authenticator for Zoho work accounts and personal online accounts. It supports time-based one-time passwords, push approvals, and QR-code login; Zoho accounts can also use passwordless sign-in. For organizations, Zoho Directory lets IT administrators configure multifactor authentication across employees’ Zoho accounts. OneAuth also supports third-party accounts such as Google, Adobe, Github, Zoom, X, Instagram, and LinkedIn.

A passphrase can help restore access after a device is lost or reset, or the app is removed, and can synchronize OTP codes across devices. Encrypted backup and multi-device sync are supported. Biometrics can unlock the app, while remote logout removes unwanted sessions. A sign-in restriction can block future logins to a Zoho account until disabled. The app is available for Android, iOS, Windows, and macOS, and supports phones, tablets, laptops, smart watches, and desktops. Its listed free plan includes time-based OTP authentication, backup and recovery, multi-device support, and passwordless Zoho sign-in.