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Cybersecurity · head to head

Google Authenticator vs Transmit Security

Google Authenticator logo

Google Authenticator

Cybersecurity

Free TOTP two-factor authentication app that gained optional cloud sync in 2023

From
Free
Rated
-
Full reviewWebsite
Transmit Security logo

Transmit Security

Cybersecurity

Customer identity platform built around passwordless and fraud signals

From
On request
Rated
-
Full reviewWebsite

The short version

  • Only Google Authenticator has a free tier, so it costs nothing to try first.
  • Each has a real cost: Google Authenticator enabling cloud sync moves the security boundary for your 2FA codes to your Google account, so a compromised Google account can expose the same codes syncing was meant to protect.; Transmit Security pricing is not published, so it cannot be compared early against competitors that post per monthly active user rates, and the eventual quote often mixes per-user and per-transaction units.
  • They diverge on capability: Google Authenticator covers TOTP code generation, Transmit Security covers Passwordless authentication.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Google Authenticator and Transmit Security actually diverge.

Attributes where Google Authenticator and Transmit Security differ
AttributeGoogle AuthenticatorTransmit Security
Starting priceFreeOn request
Pricing modelFree, no in-app purchasesquote
Free tierYesNo
PlatformsiOS, AndroidWeb, iOS, Android

Identical on both: user rating (Not yet rated), category (Cybersecurity).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Google Authenticator

  • TOTP code generation
  • QR code setup
  • Optional Google account sync
  • Offline generation
  • Manual entry

Only in Transmit Security

  • Passwordless authentication
  • Detection and response
  • Identity verification
  • Orchestration
  • Account recovery
  • Bot and automation detection
  • Composable APIs

What people use each for

The jobs each tool is most often brought in to do.

Google Authenticator

  • Someone setting up two-factor authentication on a website that asks for a TOTP appnot Transmit Security
  • A user who wants codes to survive a lost or replaced phone via account syncnot Transmit Security
  • Someone who prefers a simple, free, single-purpose authenticator over a password manager's built-in onenot Transmit Security
  • A person migrating between phones who wants existing 2FA codes to transfer automaticallynot Transmit Security

Transmit Security

  • A bank moving a consumer base off passwords to passkeys without losing customers at the migration stepnot Google Authenticator
  • An insurer whose account recovery flow is the main account takeover route and needs risk scoring inside itnot Google Authenticator
  • A retailer that wants bot detection at login rather than only at checkoutnot Google Authenticator
  • An organisation replacing an in-house customer login system that has become an unfunded engineering liabilitynot Google Authenticator

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Google Authenticator

  • Enabling cloud sync moves the security boundary for your 2FA codes to your Google account, so a compromised Google account can expose the same codes syncing was meant to protect.
  • It has no built-in backup export in a portable format, so moving away from Google Authenticator to another app usually means resetting 2FA on every individual service.
  • It lacks organisational features such as folders, search or notes that some competing authenticator apps offer for people managing many accounts.
  • There is no desktop app, so codes must be read off a phone screen when logging in from a computer.
  • If sync is off and the phone is lost without a separate backup, all codes are unrecoverable and every linked account needs its 2FA reset through account recovery.

Transmit Security

  • Pricing is not published, so it cannot be compared early against competitors that post per monthly active user rates, and the eventual quote often mixes per-user and per-transaction units.
  • Migrating a live consumer identity base is a high risk project, and credential migration constraints mean some users must re-register, which shows up as measurable churn.
  • The vendor is smaller than the identity incumbents, so the partner and systems integrator pool is thinner and staffing a large programme is harder.
  • Workforce identity is not the focus, so an organisation wanting one vendor for employees and customers will still run two platforms.
  • The fraud detection value depends on traffic volume feeding the models, so a smaller deployment gets less benefit from exactly the capability that justified choosing it over a plain identity provider.

Pricing, plan by plan

Google Authenticator

Free
  • FreeFree
    • Unlimited accounts and codes
    • Optional Google account cloud sync
    • No ads

Transmit Security

On request
  • Transmit Security Platform$undefined/year
    • Priced per monthly active user or per transaction by service
    • Services licensed individually or as a platform
    • Free developer tier for evaluation

Which should you pick?

Choose Google Authenticator if

  • You need totp code generation.
  • You want to start without paying.
  • You work on iOS, Android.
  • You also want qr code setup.
Google Authenticator review

Choose Transmit Security if

  • You need passwordless authentication.
  • You work on Web, iOS, Android.
  • You also want detection and response.
Transmit Security review

Questions people ask

Is Google Authenticator or Transmit Security better?
Neither clearly leads. Google Authenticator starts at Free and Transmit Security at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Google Authenticator or Transmit Security?
Google Authenticator has a free tier; the other does not. Paid plans start at Free for Google Authenticator and On request for Transmit Security.
Does Google Authenticator or Transmit Security run on more platforms?
Google Authenticator runs on iOS, Android. Transmit Security runs on Web, iOS, Android.
Can I use Google Authenticator for free?
Yes. Google Authenticator has a free tier, so you can try it without paying. Transmit Security starts at On request.
What is Google Authenticator best used for?
Google Authenticator is most often used for someone setting up two-factor authentication on a website that asks for a totp app, a user who wants codes to survive a lost or replaced phone via account sync, someone who prefers a simple, free, single-purpose authenticator over a password manager's built-in one, a person migrating between phones who wants existing 2fa codes to transfer automatically. Of those, someone setting up two-factor authentication on a website that asks for a totp app and a user who wants codes to survive a lost or replaced phone via account sync are not what Transmit Security is typically brought in for.
What can Google Authenticator do that Transmit Security cannot?
Google Authenticator covers TOTP code generation, QR code setup, Optional Google account sync, Offline generation. Transmit Security covers Passwordless authentication, Detection and response, Identity verification, Orchestration.

Answered from the vendors’ own pages

Google Authenticator: Does Google Authenticator cost anything?

No, it is free with no subscription or in-app purchases.

Transmit Security: Do we have to replace our existing identity provider?

No. The services are composable, so detection and response or verification can be adopted alongside an existing provider such as Okta or Entra ID.

Google Authenticator: Is cloud sync safe?

Google documents it as protected by your Google account security. Whether that is an acceptable trade-off versus device-only storage is debated; you can turn sync off if you prefer local-only codes.

Transmit Security: Is fraud detection an extra licence?

It is a separate service, but it is designed to run inside the authentication flow rather than as a bolted-on second vendor. Confirm which services are in your quote.

Google Authenticator: Can I export my codes to another app?

There is no official bulk export; moving to a different authenticator typically requires re-adding each account from its setup page.

Transmit Security: Is there a way to try it?

Yes, a free developer tier exists for evaluation, though production use is an enterprise agreement.

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