How do I move my accounts to a new phone?

Use Export Accounts to create a transfer file or QR code, then use Import Accounts on your new device to transfer your accounts safely.

Can I import accounts from Google Authenticator?

Yes. Open Google Authenticator, tap the menu, select Transfer accounts > Export accounts, then scan the QR code with Zunoy.

Why does my code stop working after a few seconds?

Each OTP generator code is valid for a short period, usually 30 seconds, before a new code is generated. Make sure your device's date and time are set automatically.

Secure Your Accounts

The Ultimate 2fa authenticator for Absolute Privacy

Protect your logins with Zunoy, the free 2fa authenticator that works instantly offline. Generate secure verification codes on your device with zero sign-up required.

Download For Free

Explore Cloud Sync

No Signup

Optional cloud backup

Works Offline

Instant Private Setup

Why You Need This 2fa authenticator Today

Securing your digital life should never compromise your privacy. Our 2fa app delivers unmatched account protection through local TOTP codes without the setup friction.

No Sign-Up Needed

Start generating verification codes instantly. Use this otp authenticator right away without handing over your email or phone number.

Offline First Architecture

As a true offline authenticator, your codes generate safely on your device instead of relying on vulnerable SMS text messages.

Simple Setup

Scan a QR code authentication prompt and secure your accounts in seconds using our privacy-focused platform.

Stop Account Takeovers

What is a 2fa authenticator and Why Passwords Fail

A password is just one lock. Two-factor authentication adds a second, changing key. But how does a 2fa authenticator app work? It pairs a secret key with the current time to generate unique, thirty-second verification codes. Using a dedicated 2fa app prevents automated attacks and SIM-swapping, making it far superior to SMS. So, how does offline authentication work? Your device uses mathematical algorithms to generate valid multi-factor authentication tokens locally, without ever needing an internet connection.

Advanced Security Tools

A Smarter otp authenticator for Complete Control

Go beyond standard authenticator app features. Zunoy hardens your defenses with proactive risk warnings and total data sovereignty to ensure maximum protection.

App Lock Biometrics

Require device authentication to access the app. Lock your vault with Face ID or your fingerprint to keep your codes private.

Block Screenshots

Prevent screenshots within the application to stop anyone from saving your private offline OTP details to a camera roll.

Export Accounts Easily

Move your accounts to another device effortlessly. We never log your secrets, ensuring absolute privacy for your secure authenticator app.

Never Lose Access

Optional Cloud Sync for Your 2fa authenticator

While Zunoy operates perfectly as an offline authenticator, device loss happens. Securely back up your accounts to the cloud and restore them when needed. Your vault gets encrypted on-device before syncing, ensuring true zero-knowledge privacy. Recover your accounts seamlessly on a new device without losing your vital secure authenticator app access.

Learn How Cloud Sync Works

See The Difference

Compare Our 2fa app Against Alternatives

See how Zunoy stacks up against other tools for two-factor authentication. We prioritize your privacy above all.

Features	Zunoy	Google Authenticator	Microsoft Authenticator
Encrypted Sync	Yes (End-to-End)	Yes	Yes
Display Layout	List or Cards	List Only	Limited
App Lock	Yes	Yes	Yes
Block Screenshots	Yes	Limited	Limited
Export Accounts	Yes	Yes	No
Account Required	Optional	Optional	Yes

Got Questions?

Frequently Asked Questions

What is Zunoy Authenticator?

Zunoy is a 2fa authenticator that generates time-based one-time passwords (TOTP) for accounts protected with two-factor authentication, so you can sign in securely without relying on SMS.

Do I need to create an account to start?

No. You can install the application and generate codes instantly. It functions as a powerful otp authenticator without requiring email sign-up.

Do I need an internet connection to generate codes?

No. Codes are generated locally on your device. An internet connection is only required for cloud backup and sync.

Is my data encrypted when backed up to the cloud?

Yes. Your account secrets are encrypted before being backed up, helping keep them protected during storage and recovery.

What happens to my accounts if I disable Cloud Sync?

Your accounts will remain on your current device, but they will no longer be backed up. We recommend using the Export Accounts feature before disabling.

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Upgrade Your 2fa authenticator Today

Take total control of your digital identity. Stop relying on outdated passwords and protect every login with the ultimate 2fa authenticator. Secure your digital life now.

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