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Google Authenticator vs OnlyKey

Professional comparison and analysis to help you choose the right software solution for your needs.

Google Authenticator icon
Google Authenticator
OnlyKey icon
OnlyKey

Google Authenticator vs OnlyKey: The Verdict

⚡ Summary:

Google Authenticator: Google Authenticator is a multi-factor authentication mobile app that generates timed codes for user verification. It helps protect user accounts by requiring both a password and a randomly generated 6-digit code that refreshes every 30 seconds.

OnlyKey: OnlyKey is a physical security key that can replace passwords and two-factor authentication tokens. It encrypts and stores passwords, generates one-time passcodes, supports FIDO U2F authentication, and integrates with various password managers.

Both tools serve their respective audiences. Compare the features, pricing, and user ratings above to determine which best fits your needs.

Last updated: May 2026 · Comparison by Sugggest Editorial Team

Feature Google Authenticator OnlyKey
Sugggest Score — —
Category Security & Privacy Security & Privacy
Pricing — Open Source

Product Overview

Google Authenticator
Google Authenticator

Description: Google Authenticator is a multi-factor authentication mobile app that generates timed codes for user verification. It helps protect user accounts by requiring both a password and a randomly generated 6-digit code that refreshes every 30 seconds.

Type: software

OnlyKey
OnlyKey

Description: OnlyKey is a physical security key that can replace passwords and two-factor authentication tokens. It encrypts and stores passwords, generates one-time passcodes, supports FIDO U2F authentication, and integrates with various password managers.

Type: software

Pricing: Open Source

Key Features Comparison

Google Authenticator
Google Authenticator Features
  • Generates time-based one-time passwords (TOTP)
  • Supports HMAC-based one-time passwords (HOTP)
  • Easy to set up and use
  • Available on iOS and Android devices
  • Syncs across multiple devices
  • Open source
OnlyKey
OnlyKey Features
  • Stores passwords, credentials and keys
  • Generates one-time passcodes for 2FA
  • Supports FIDO U2F and FIDO2 for authentication
  • Open source firmware
  • Encrypted and tamper-resistant

Pros & Cons Analysis

Google Authenticator
Google Authenticator

Pros

  • Provides an extra layer of account security
  • No additional hardware token required
  • Widely supported by many online services
  • Free to use

Cons

  • Requires a smartphone
  • Account recovery can be difficult if phone is lost
  • Some users may find codes inconvenient
  • Limited customization options
OnlyKey
OnlyKey

Pros

  • Replaces multiple tokens and passwords
  • More secure than software authenticators
  • Portable and convenient to carry
  • Works across devices and operating systems

Cons

  • Costs more than software authenticators
  • Physical key can be lost or damaged
  • Limited compatibility with some services

Pricing Comparison

Google Authenticator
Google Authenticator
  • Not listed
OnlyKey
OnlyKey
  • Open Source

Related Comparisons

Learn More About Each Product

Google Authenticator
Google Authenticator
Reviews, pricing & alternatives →
OnlyKey
OnlyKey
Reviews, pricing & alternatives →

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