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

Suddenly tried to split my codes into multiple accounts, which is helpful in theory but in practice it doesn't correctly let me select which codes to transfer or easily allow them to be removed that I can see, once you skip the initial prompt to delete them after transfer (I'm not going to confirm deletion of all my codes without seeing that they are all safe and sound in the new account). Now I just have a bunch of duplicate codes in multiple accounts with no way to fix that I can see.

I wish I could say I like the app. It works most of the time (when things are good), but: - It has issues syncing codes across devices: they are not in sync, and there is no "time sync" option in the settings anymore. - It will RANDOMLY DELETE ALL OF YOUR SYNCED CODES. I cannot stress enough how awful this is. They will disappear from your cloud account and then be summarily deleted on all devices that are connected to the internet. Given these flaws, I cannot recommend this app. Will try Aegis.

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.

What's new

* Added device encryption to storage of secret values.