The Google Authenticator download is free on iPhone, iPad and Android, straight from the App Store and Google Play. The six-digit codes it creates on your phone sign you in on any Windows 11, Windows 10 or Mac computer.
Google publishes the app and charges nothing for it. Sign in with your Google Account inside the app and your codes sync to every phone you set up.
This guide covers the official links, install steps, signing in on a PC or Mac, moving codes to a new phone, and fixes for wrong or missing codes.
Which Google Authenticator download do you need?
Every copy of the app comes from Apple’s or Google’s store. Match your device to a row and follow that link.
| Your device | Where to get it | What it needs |
|---|---|---|
| iPhone | App Store | iOS 16.0 or later, about 41 MB free |
| iPad | App Store | iPadOS 16.0 or later |
| Android phone or tablet | Google Play | Android 6.0 or later and Google Play |
| Windows 11 or 10 PC, or a Mac | Install on your phone, type the code on the computer | A phone with the app set up for that account |
The app always runs on the phone or tablet. On a computer, you read the current code from the phone and type it into the sign-in page.
Download Google Authenticator from the official App Store and Google Play listings
Google LLC is the seller on the App Store and the developer on Google Play. Any other publisher name means the listing is not Google’s app.
- Google Authenticator on the App Store — 40.9 MB · iPhone and iPad, free, version 5.0.3
- Google Authenticator on Google Play — Android phones and tablets, free, 100M+ downloads
- Google Authenticator help page — Google’s setup, sync and transfer instructions
The Microsoft Store has no Google LLC listing. Authenticator apps there come from other publishers and cannot read codes saved in Google Authenticator.
How to install Google Authenticator on iPhone and Android
The install takes under a minute. Setting it up for your Google Account happens from the 2-Step Verification settings.
- Open the Google Authenticator listing on the App Store or Google Play.
- Tap Get on the App Store or Install on Google Play.
- Confirm with Face ID, Touch ID or your account password if asked.
- Open the app and tap Get started.
- Sign in with your Google Account to sync codes, or tap Use without an account to keep them on this phone only.
- On the phone, open your Google Account’s 2-Step Verification settings and tap Set up authenticator.
- Follow the on-screen steps to add the account.
- For other sites, open their two-factor settings on your computer and scan the QR code they show with the app.
Google can take up to 7 days to offer Google Authenticator as a sign-in option for a Google Account. A trusted passkey or security key can shorten that wait.
How to sign in on a Windows 11 or 10 PC with Google Authenticator
Google Authenticator works with Windows through your phone. The PC shows the code prompt and the phone supplies the code.
- Enter your email and password on the sign-in page in your PC browser.
- Choose the option to use a code from your authenticator app when asked for the second step.
- Unlock your phone and open Google Authenticator.
- Find the account by name, or type part of the username in the search bar.
- Type the six-digit code into the PC before its timer runs out.
- Select Next or Verify to finish signing in.
The codes are generated on the phone itself, so this works even when the phone has no internet or mobile signal.
Which way can you use Google Authenticator with a Mac?
Apple’s App Store lists the app for iPhone and iPad only, with no Mac entry under Compatibility. Pick the route that fits your setup.
| Your situation | What to do | Link |
|---|---|---|
| You have an iPhone or Android phone | Install the app on the phone and type its code into the Mac sign-in page | App Store listing |
| You sign in to a Google Account on this Mac often | Create a passkey so the Mac’s fingerprint or password unlock replaces the code step | Google passkeys help |
| Your phone is lost or out of reach | Use one of your 10 Google backup codes instead | Google backup codes help |
The same three routes work on a Windows PC.
Is Google Authenticator free?
Yes. Google Authenticator is free on the App Store and Google Play, with no subscription and no in-app purchases. Google makes the app to support 2-Step Verification. Any listing that asks you to pay for Google Authenticator, or that names a publisher other than Google LLC, is not Google’s app.
Syncing codes to your Google Account is free as well.
Should you sync codes to your Google Account or keep them on one phone?
Sync your codes to your Google Account. Synced codes come back when you sign in on a new phone, so a lost or broken phone does not lock you out. Google encrypts the codes in transit and at rest. Codes kept with Use without an account exist only on that device.
Sync needs app version 6.0 or above on Android and 4.0 or above on iOS. If you use the app without an account, turn on Privacy Screen and keep backup codes for every important account.
How to check your Google Authenticator version and update it
On iPhone or iPad
- Open the App Store and search for Google Authenticator.
- Open the listing published by Google and scroll to Version History to see the current release.
- Tap Update if the button shows. Open means you already have the latest version.
On Android
- Open Settings, then Apps, then Google Authenticator.
- Scroll to the bottom of App info to read the installed version.
- Open the Google Play listing and tap Update if it shows.
Check the Google Authenticator requirements before you download
| Field | Value |
|---|---|
| App | Google Authenticator |
| Developer | Google LLC |
| Latest version | 5.0.3 on the App Store |
| Price | Free, no in-app purchases |
| iPhone and iPad | iOS or iPadOS 16.0 or later |
| Android | Android 6.0 or later through Google Play |
| Download size | 40.9 MB on the App Store |
| Windows 11 and 10 | No PC app; type codes from the phone into the PC |
| macOS | No Mac app; type codes from the phone into the Mac |
| Connection | Internet needed to install and sync; codes generate offline |
| Offline installer | No |
| Official source | App Store and Google Play |
| Last verified | 2026-09-24 |
To check your iPhone version, open Settings, then General, then About. On Android, open Settings, then About phone.
Fix Google Authenticator codes that fail, vanish or will not transfer
Find the problem that matches your screen and follow the fix under it.
The code is rejected as wrong
The code expired, belongs to another account, or the phone clock is off.
- Wait for a fresh code and type it before the timer ends.
- Check that the code sits under the right site and the right account name.
- Open the phone’s date and time settings and turn on automatic time and time zone.
- Try the new code again.
Your codes disappeared from the app
The app signed out of your Google Account, or the codes were saved to a different account.
- Tap the profile icon at the top right and confirm you are signed in.
- Switch to your other Google Accounts to look for the codes there.
- Check the Use without an account view in the app’s settings.
- If you are locked out of the Google Account itself, follow Google’s account recovery steps.
You need your codes on a new phone
Codes kept without a Google Account do not sync on their own.
- Install Google Authenticator on the new phone and tap Get started.
- Sign in to your Google Account; synced codes appear automatically.
- For unsynced codes, open the app on the old phone and tap Menu, then Transfer accounts, then Export accounts.
- Select the accounts to move and tap Next to show a QR code.
- On the new phone, tap Menu, then Transfer accounts, then Import accounts, and scan the code.
Google Authenticator is not offered as a sign-in option
Google can take up to 7 days to trust a newly added authenticator.
- Sign in with another 2-Step Verification method for now.
- Add a passkey or security key to your Google Account to speed up the wait.
- Check the 2-Step Verification page again after a few days.
How to uninstall Google Authenticator without losing your codes
Codes stored only on the phone are deleted with the app. Sync them to your Google Account or export them first.
- Open the app and confirm your profile picture shows at the top right, which means the codes are synced.
- If you use the app without an account, export the codes with Transfer accounts to another phone first.
- On iPhone, touch and hold the app icon, tap Remove App, then Delete App.
- On Android, open Settings, then Apps, then Google Authenticator, and tap Uninstall.
- To erase synced codes from Google as well, delete the Google Authenticator service in your Google Account.
Deleting the Google Authenticator service removes the codes from every device but leaves the rest of your Google Account intact.
Which Google sign-in option should you use instead of codes?
| Option | Works on a PC or Mac | Best for |
|---|---|---|
| Google Authenticator codes | Yes, typed from the phone | Google and any site that supports authenticator apps |
| Passkey | Yes, unlocked with fingerprint, face scan or PIN | Fast Google sign-in that skips the second step |
| Backup codes | Yes, each code works once | A lost or dead phone |
Keep Google Authenticator for other sites and add a passkey for your Google Account. Print your backup codes and store them away from the phone.
Frequently asked questions
Is Google Authenticator free?
Yes. Google Authenticator is free on the App Store and Google Play, with no subscription and no in-app purchases. Syncing your codes to your Google Account also costs nothing.
Where is the official Google Authenticator download?
The official downloads are the App Store listing for iPhone and iPad and the Google Play listing for Android. Both name Google LLC as the publisher. Google’s own help page links to the same two listings.
Is Google Authenticator available on PC or Windows 11?
Google publishes no Windows app, and the Microsoft Store has no Google LLC listing. Install the app on your phone, then type its six-digit code into the sign-in page on your Windows 11 or Windows 10 PC.
Is there a Google Authenticator app for Mac?
No. The App Store lists Google Authenticator for iPhone and iPad only. On a Mac, read the code from your phone and type it in, or add a passkey to your Google Account to skip the code step.
How big is the Google Authenticator download?
The App Store build for iPhone and iPad is 40.9 MB. Google Play does not show a download size on its public listing. Both stores need an internet connection for the install.
What is the latest version of Google Authenticator?
The App Store version is 5.0.3, released on August 24, 2026 with bug fixes and improvements. Google Play does not display a version number, and its listing was last updated on July 22, 2026.
Is there an offline installer for Google Authenticator?
No. Both stores install and update the app over the internet. Once it is set up, the app generates codes without any network or cellular connection.
Does Google Authenticator run on 64-bit or ARM64 PCs?
No. There is no Windows build for x64 or ARM64 machines. The app runs on iPhone, iPad and Android devices, and the codes it shows work on any computer’s sign-in page.
Is Google Authenticator safe?
Yes, when you install it from the App Store or Google Play under Google LLC. Google encrypts synced codes in transit and at rest, and the Privacy Screen setting locks the app behind your face, fingerprint or PIN.
How do I get my old Google Authenticator codes on a new phone?
Install the app on the new phone and sign in to the Google Account the codes were synced to. Unsynced codes move with Transfer accounts: export a QR code on the old phone, then import it on the new one.
Why won’t Google Authenticator install?
Your phone is most often below the minimum system. The iPhone app needs iOS 16.0 or later, and the Android app needs Android 6.0 or later. Update the phone’s system software and try the store again.
Can I use Google Authenticator without a Google Account?
Yes. Tap Use without an account when you first open the app. Your codes then stay on that device only and will not sync, so export them before you reset or replace the phone.
