Google Authenticator

Authentication Systems
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free★★★★★★★★☆☆8.8

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TL;DR

Google Authenticator is a free mobile authentication app generating time-based one-time passwords for multi-factor account protection.

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Key Facts

VendorGoogle
Best fit
EnterpriseSMB

Free version: Google Authenticator is free. Advanced enterprise MFA may use Google Identity or other paid platforms.

Pricing

Starting at Free

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Google Authenticator

Free
Free
Mobile app
  • Time-based one-time passwords
  • Multi-factor authentication
  • Account backup and transfer
  • Google account sync

Additional Pricing Information

Google Authenticator is free; broader identity and SSO needs may require additional Google or vendor services.

Details

What is Google Authenticator?

Google Authenticator is a free mobile MFA app generating TOTP codes to strengthen account security. Reviewers score it 8.8 out of 10 across 296 TrustRadius reviews, noting simplicity, compatibility, and cost while noting enterprise identity needs. It is widely recommended as a baseline MFA option for individuals and organizations improving credential hygiene.

Key Features

  • *TOTP** — Time-based one-time password generation
  • *MFA** — Second-factor account protection
  • *Setup** — QR-based and manual key entry
  • *Transfer** — Account migration and backup
  • *Sync** — Google account sync option
  • *Compatibility** — Broad TOTP and service support

Who is it for?

  • Individuals and teams enabling MFA
  • Organizations improving account security hygiene
  • Buyers evaluating low-cost MFA options
  • Teams comparing Authenticator, 1Password, and Okta

Who is it NOT for?

  • Enterprises needing centralized identity and SSO only
  • Buyers avoiding Google services dependency
  • Organizations needing fully managed MFA governance
  • Users without mobile device access

The Bottom Line

Google Authenticator is one of the best free MFA options available. The 8.8 score reflects usability and compatibility. For enterprise identity strategy, pair it with Okta, Auth0, or Microsoft Identity.

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