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

intuitive, consistent, minimal 2FA app with one minor bug great app, allows you to sync to your google account for multi-device or transferring. single point of failure, minor security concerns, but very convenient, so it's worth it. bug: it crashes whenever i try to rearrange my accounts aside from that, no major complaints, very consistent and reliable 2FA app, intuitive, easy to sync/transfer, been using it for ~5 years, no complaints aside from one avoidable crash condition.

Would love to give this app 5 stars, as it’s a straightforward design that does one thing well. Almost. Since earlier this year, the app has not refreshed its list of authentication codes when the 60-second countdown timer rolls over. Given that many sites don’t have a grace period for codes from the preview 1-2 minutes, this is a stupid UI misdesign or bug (I’m going with the latter). The lack of a fix makes me wonder if Google hasn’t abandoned this product.

In the last couple of weeks (June 2023) it stopped working on my Android phone. Seems to me some update to the Android system that caused the issue. I tried on 2 android devices. I did everything from reinstalling, syncing the time, nothing works. I searched for other options, nothing helped. It works on Apple devices, but not Android. If they don't fix it soon, I will have to switch to another app.

What's new

* Added device encryption to storage of secret values.