Google Authenticator

Google LLC

About this app

Google Authenticator adds an extra layer of security to your online accounts by adding a second step of verification when you sign in. This means that in addition to your password, you'll also need to enter a code that is generated by the Google Authenticator app on your phone. The verification code can be generated by the Google Authenticator app on your phone, even if you don't have a network or cellular connection.
* Sync your Authenticator codes to your Google Account and across your devices. This way, you can always access them even if you lose your phone.
* Set up your Authenticator accounts automatically with a QR code. This is quick and easy, and it helps to ensure that your codes are set up correctly.
* Support for multiple accounts. You can use the Authenticator app to manage multiple accounts, so you don't have to switch between apps every time you need to sign in.
* Support for time-based and counter-based code generation. You can choose the type of code generation that best suits your needs.
* Transfer accounts between devices with a QR code. This is a convenient way to move your accounts to a new device.
* To use Google Authenticator with Google, you need to enable 2-Step Verification on your Google Account. To get started visit http://www.google.com/2step Permission notice: Camera: Needed to add accounts using QR codes

Ratings and reviews

App suddenly desynced from the correct time, and the directions in the Help do not match the reality of what is actually in the app, as if they are outdated for a previous version. As a result, my codes only work for the first few seconds and then stop working. I then have to wait several more seconds for a new one to generate. There is no apparent support to contact about this error.

The authentication works, but the user interface clearly had zero thought put into it whatsoever. Even the very most basic features like the ability to sort the sites for which you are storing authentication information are missing. And better still, even if you manually sort them in alphabetical order, if you switch to a different phone your sort order is forgotten and has to be done all over again. Truly awful and one of these days I'll get around to replacing it even if that's a huge job.

Never had a problem with authenticator in the years that I have been using it. Went across many versions of Android and phone models and brands and still no problems. When I follow the instructions it just seems to work, and yes it's not perfect but it evolved in right direction. It could have more bells and whistles but I just want it to give me that number. I like that it can be stored in the cloud and accessible even with a lost phone. I have no complaints.

What’s new

* Cloud syncing: Your Authenticator codes can now be synced to your Google Account and across your devices, so you can always access them even if you lose your phone.
* Privacy Screen: Access to Authenticator can now be protected by your screen lock, PIN or biometric.
* Improved UX and visuals: We've made the app easier to use and more visually appealing.