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Google Authenticator

By Google, Inc.

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Google Authenticator works with 2-Step Verification for your Google Account to provide an additional layer of security when signing in.

With 2-Step Verification, signing into your account will require both your password and a verification code you can generate with this app. Once configured, you can get verification codes without the need of a network or cellular connection.

Features include:
- Automatic setup via QR code
- Support for multiple accounts
- Support for time-based and counter-based code generation

To use Google Authenticator, you need to enable 2-Step Verification on your Google Account. Visit to get started.

Requires iOS 5.0 or later.

What's New in Version 2.1.0

• Includes a link to allow users to send anonymous feedback to Google
• Displays the website associated with a verification code (for websites that support this feature)
• Minor visual improvements
• Bug fixes

iPhone Screenshot

iPhone Screenshot 1

Customer Reviews

Works but I'd prefer an app-specific password

This app works just fine but I don't see how it is better than SMS password verification.

With this app I have to enter my account password on my cell phone. This encourages me to use a smile password. So, I want an app-specific password for the phone and 2 factor authentication for account login from a computer.

I wonder if Google would consider using RSA SecureID. I already use this for work and it would be nice to have 1 fewer app.

Works great except for...

... Yahoo. The new update does not work when I try to log into yahoo fantasy football via my google account on the iPhone. I'm sure they'll get it working soon and otherwise a 5 star app!


This app is a life saver when you have two phone numbers for multiple accounts. This is amazing.

Google Authenticator
View In iTunes
  • Free
  • Category: Utilities
  • Updated: Oct 03, 2013
  • Version: 2.1.0
  • Size: 1.6 MB
  • Languages: English, Arabic, Catalan, Chinese, Croatian, Czech, Danish, Dutch, Finnish, French, German, Greek, Hebrew, Hungarian, Indonesian, Italian, Japanese, Korean, Malay, Norwegian, Polish, Portuguese, Romanian, Russian, Slovak, Spanish, Swedish, Thai, Turkish, Ukrainian, Vietnamese
  • Seller: Google, Inc.

Compatibility: Requires iOS 5.0 or later. Compatible with iPhone, iPad, and iPod touch. This app is optimized for iPhone 5.

Customer Ratings

Current Version:
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