The best Google Authenticator alternatives in 2026

Google Authenticator is the default authenticator app for millions, and for good reason. It is made by Google, installs in seconds, and generates codes that work everywhere. It does exactly what it says on the label.

That is also its limitation. While Google kept the app minimal, the field moved on. Other authenticators added encrypted backups, multi-device sync, desktop access, and open-source code. None of that is a reason to panic, just a reason to look around. Here is an honest map of the alternatives, and how to switch without locking yourself out. New to how these apps generate codes? Start with what TOTP is and how it works.

The case for staying

If Google Authenticator works for you, there is nothing urgent to fix. The app is simple, generates standard TOTP codes, and needs no account. You can use it entirely offline, every seed on one phone and nowhere else.

It also finally syncs. In April 2023, Google announced that the app can back up your one-time codes to your Google account and restore them on a new phone. That fixed the app's worst historical problem: a lost phone used to mean losing every seed, and every account with it.

The caveat is how that sync was built. When security researchers examined the rollout, they found the synced secrets were not end-to-end encrypted. Anyone with access to those servers, or control of your Google account, could read them. Google responded that end-to-end encryption was on the roadmap. Three years later, by all public reporting, it still has not shipped. Your synced codes are exactly as safe as your Google account itself.

That is a manageable risk if your Google account has a strong password and its own second factor. It is just not what a dedicated authenticator offers, and it is the main reason people look for an alternative to Google Authenticator.

The case for switching

Four gaps come up again and again:

• Backups and exports: other apps treat backup as a first-class feature — encrypted, scheduled, restorable, not a one-shot QR transfer.
• Multi-device: Google syncs between phones. It has no tablet, desktop, or web app.
• Open source: you cannot inspect what Google Authenticator does with your seeds. Open-source apps publish theirs.
• Desktop access: typing a code at a computer means reading it off a phone, unless your authenticator lives somewhere closer.

Ownership matters too. Raivo Authenticator was the most-recommended open-source iOS app for years. It was sold to a company called Mobime, the new owner never answered the community's questions, and a later botched update left some users unable to reach their tokens. Any app can change hands. What protects you is export, backup, and auditable code, arranged before anything goes wrong.

Microsoft Authenticator

The closest thing to a like-for-like rival, and the natural home for the Microsoft ecosystem. For personal and work Microsoft accounts, it does push approvals: a notification asking you to approve the sign-in, with number matching to resist blind "approve" taps. For everything else, it generates standard TOTP codes. Google and Microsoft Authenticator both speak plain TOTP, so every service that supports one supports the other.

Backups tie to a Microsoft account and restore on a new phone. It is iOS and Android only, with no desktop app, and push approvals exist only for Microsoft accounts. Weighing Microsoft Authenticator against Google Authenticator for a non-Microsoft account list, they are functionally equivalent: pick based on which company you prefer holding your backups. Details are on Microsoft's official page.

Authy

Authy, from Twilio, built its name on multi-device sync: your codes on your phone, your tablet, and historically your desktop, encrypted with a password you choose. The Authy authenticator still does that, plus encrypted backups and recovery through your phone number.

Two changes dented the reputation. The desktop apps reached end of life on March 19, 2024, leaving Authy mobile-only. And in mid-2024, Twilio disclosed that an unsecured API endpoint had let attackers collect the phone numbers of about 33 million Authy users. No seeds were exposed, but the numbers are fuel for phishing. The app is also closed source and requires a phone number.

None of that makes Authy dangerous. It remains a mature choice if multi-device mobile sync is the priority and closed source does not bother you.

2FAS

2FAS is the strongest "just works" option in the open-source camp. The 2FA authenticator from 2fas.com is free, publishes its source code, and runs on iOS and Android. It syncs between your mobile devices, backs up to Google Drive or iCloud, locks behind a passcode or biometrics, and offers a browser extension for approving logins from the desktop.

There is no paid tier and no account beyond the backup location you choose. For open source without giving up polish, this is the standard recommendation.

Aegis

Android-only, and the privacy community's favorite there. Aegis is open source, stores your seeds in an encrypted vault on the device, locks with biometrics, and can import directly from Google Authenticator. It has no cloud sync by design. Backups are encrypted export files you manage yourself, which is either its best or worst feature, depending on how well you keep copies.

Ente Auth

Ente Auth comes from the team behind the Ente photo service. It is fully open source, and its defining feature is end-to-end encrypted sync: the same seeds on your phone, tablet, desktop apps, and the web, with nothing readable on the server. It handles TOTP and HOTP and costs nothing. The trade for sync is an account, and trust in the provider's cryptography rather than your own file keeping.

The browser option: 2FA by DependsiT

Every app above is an install. There is also a way to keep 2FA entirely in the browser.

Our guest generator runs without an account. Paste a Base32 secret, an otpauth:// URI, a QR code image, or an entire Google Authenticator export — the same file the app produces when you transfer accounts — and codes appear instantly. Everything happens in the browser: zero network requests, nothing stored anywhere. Because it accepts the export directly, it doubles as a way to inspect a migration before you commit.

If you want sync, the vault adds zero-knowledge storage. Keys are encrypted on your device with PBKDF2, HKDF, and AES-256-GCM, and the server holds ciphertext it cannot decrypt. It supports TOTP, HOTP, and Steam Guard with per-key options, installs as a PWA, and works offline. The free tier covers 100 folders and 100 entries; sync beyond that is $24 a year or $99 once. Try the guest generator first, or create an account when you want the vault.

How to migrate without lockout

The mistake that hurts is deleting the old app before the new one is proven. The safe order:

1. Save recovery codes first. Download the one-time recovery codes from each service's security settings. These are your escape hatch for the entire operation.
2. Export in bulk. Google Authenticator on Android can export all accounts at once as a series of QR codes, under "Transfer accounts." Most alternatives — Aegis, 2FAS, Ente Auth, our guest generator — can scan that batch.
3. Re-enroll where export is not an option. Some services do not accept transferred seeds. For those, turn 2FA off and on at the service and scan the new QR code into the new app.
4. Keep both apps until every account is verified. Log in with a code from the new app, one account at a time. Only when all of them work — tested, not assumed — clear the old app.
5. Back up the new vault. Save an encrypted export somewhere other than the phone.

Done this way, the worst case is a few minutes of re-enrollment, not a lockout.

The time-sync problem

Before you blame the app: a rejected, correct-looking code is almost never the app's fault. TOTP codes depend on the clock, and Google Authenticator time-sync drift is the most common cause of rejected codes. Your phone slipped off network time, so it generates codes for a different 30-second window than the server expects.

The fix takes ten seconds: turn on automatic date, time, and time zone, and codes line up again immediately. If one service rejects codes while every other accepts them, that service's server clock is off. Nothing on your side fixes that; it is worth reporting.

Frequently asked questions

Can I move accounts out of Google Authenticator without losing them?

Yes. Android's "Transfer accounts" export produces QR codes that most other authenticators scan in one batch. Where a service does not accept migrated seeds, re-enroll it: turn 2FA off and on at the service and scan into the new app. Either way, keep the old app installed until you have logged in from the new one, and save recovery codes first.

Which app is closest to Google Authenticator?

2FAS or Ente Auth give the same list-of-codes experience with better backups. Microsoft Authenticator if you want push approvals for Microsoft accounts. Of those, 2FAS feels most familiar with least lock-in.

Can I run Google Authenticator and another app together?

Yes, and it is a sensible way to test a replacement. The same TOTP seed can live in two apps at once, and both generate identical codes. Run them in parallel until you trust the new one; a seed in two places is protected by the weaker of the two.

Why are my Google Authenticator codes wrong?

Almost always phone clock drift. TOTP derives codes from the current time in 30-second windows, so a phone even a minute out of sync generates codes the server rejects. Turn on automatic date and time and the problem disappears. Only if codes fail across multiple services after that should you suspect anything else.

Is Google Authenticator being discontinued?

No. Google ships updates, syncs to your Google account, and shows no sign of retiring the app. The 2023 changes added sync; nothing was removed. The case for switching is about features and encryption, not an imminent shutdown.

For a wider comparison, see the best TOTP apps of 2026.