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This article provides a comparison between the OATH-based one-time password (OTP) mobile apps Nexus Personal MobileGoogle Authenticator, and Microsoft Authenticator.

Nexus Personal MobileGoogle AuthenticatorMicrosoft Authenticator

Time-based one-time password (TOTP)

Event-based one-time password (HOTP)

Supported by Nexus Hybrid Access Gateway

Fingerprint authentication on iOS and Android

Face recognition on iOS

Supported algorithms


SHA256on iOS

on Android

SHA512on iOS

on Android

OTP types

OATH allows generating an OTP based on a shared secret. There are two types of OTPs:

  • time-based OTP (TOTP): A TOTP is renewed after a fix amount of time, for example 30 seconds. 
  • event-based OTP (HOTP): An HOTP is valid per authentication. After authentication a new OTP is generated. 

Nexus authentication platform

Nexus authentication platform Nexus Hybrid Access Gateway supports OTP token authentication based on OATH – for hardware and software tokens – as well as self-registration for OATH-compliant mobile applications.