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Authenticator Extension vs Token2 Mobile Authenticator

Both stand on authenticator apps. Which one you can start free with, which one lets you read the code, and what each costs once you pay.

Authenticator Extension

Free plan Extension

Authenticator Extension combines browser-based OTP generation with search, password protection, sync, and multiple backup paths. Protect backups carefully, because reinstalling supported extensions clears stored data and cloud options transmit account information.

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Token2 Mobile Authenticator

Free plan Android

Token2 Mobile Authenticator focuses on generating and protecting TOTP and MOTP profiles on Android. Optional Google Drive synchronization adds multi-device use, while team and push features are absent.

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The facts

Authenticator ExtensionToken2 Mobile Authenticator
Free planYesYes
Open sourceNot publishedNot published
Runs onExtensionAndroid
Lowest paid planNot publishedFree or on request
Plans publishedNone1
MakerNot publishedToken2 Mobile Authenticator
Websiteauthenticator.cctoken2.com
On authenticator apps#93 of 111#89 of 111

Authenticator Extension: what it does well

  • Supports TOTP and HOTP standards
  • QR-code and manual account setup
  • Password encryption and browser sync
  • Backups to three cloud providers
  • MIT-licensed open-source project

What to know first

  • Safari edition lacks official support
  • Reinstalling Chrome or Edge clears data
  • Cloud backups transmit secrets to providers
  • Unencrypted Steam or Blizzard backups use another format

Token2 Mobile Authenticator: what it does well

  • Free Android authenticator
  • Supports TOTP under RFC 6238
  • Classic MOTP and QR enrollment
  • Optional Google Drive profile syncing
  • Optional PIN protection for TOTP profiles

What to know first

  • Android platform only
  • No push approvals
  • No team administration

Alternatives to Authenticator Extension Alternatives to Token2 Mobile Authenticator The whole list