Secure Your Digital World with Zunoy Authenticator!
Protect yourself from hackers and account takeovers. Go beyond the password with the free authenticator that works instantly—no account needed.
No Account Needed
Install and generate OTP codes offline. Nothing to create, nothing to learn.
- Get Started in Seconds
- No sign-up
- Offline first
- Minimal setup
Why Your Passwords Aren't Enough
A password is just one key. Two-factor authentication (2FA) adds a second, unique key that changes every 30 seconds. It's the simplest way to block over 99% of automated attacks, and an authenticator app like Zunoy is the most secure way to use it.
Stop Account Takeovers
Renders stolen passwords useless. Hackers can't access your account without your unique, temporary code.
More Secure Than SMS
Avoids SIM-swapping attacks. Codes generate offline on your device, not sent via vulnerable text messages.
Universal Protection
Works with any service that supports 2FA: your email, bank, social media, and work apps.
How Zunoy Keeps You Secure
Step 1 : Download the App
Install the free app from the App Store or Google Play—no sign-up required.
Step 2 : Scan the QR Code
Point your camera at any service's 2FA QR code. Zunoy adds it instantly.
Step 3 : Use Your Code to Log In
Get 6-digit TOTP codes that refresh every 30 seconds. Works entirely offline.
Never Lose Your 2FA Codes.
Your phone isn't invincible. Enable encrypted cloud backup to sync your codes across all your devices and recover instantly from loss or theft.
- End-to-End Encrypted Backup
- Sync Across All Your Devices
- Instant Recovery for Lost Phones
- Your Data, Always in Your Control
Learn How Cloud Sync Works
Post-Login Benefits
Everything you need to stay secure, backed up, and in control — all in one place.
Encrypted Cloud Backup
Your codes are encrypted on your device before syncing. We never see your secrets—only you hold the keys.
- End-to-end encryption
- Recover your accounts if you lose your phone
- Your keys remain yours alone
- One-tap delete
Your privacy is non-negotiable. Here’s how we protect it.
Local-First & Encrypted
Your codes are generated and stored securely on your device first. We never see them.
Proactive Risk Warnings
We alert you if your device has jailbreak, root, or USB debugging enabled—before you use the app.
Biometric Protection
Lock the app with Face ID, Touch ID, or your fingerprint. You control access.
Screenshot Control
Prevent screenshots within the app to stop codes from being saved to your camera roll.
Optional Cloud Backup
Backup is off by default. If you enable it, everything is encrypted before it leaves your device.
Your Data, Your Control
Export your data anytime. We don’t log your secrets or events. True zero-knowledge design.
See the Difference
| Breakdown of Features |  |  |  |
|---|---|---|---|
| Encrypted Sync | Yes (End-to-End Encrypted) | No | No |
| Flexible Dashboard | Yes (cards/list, icon/code/email focus) | No | Limited |
| Notifications Hub | Backup & Login Alerts for Zunoy Accounts | No | No |
| Multi-Device Session Management | View & Revoke Sessions | No | No |
| Direct Export | Full Import/Export | Yes | No |
| Start without an account | Yes | Yes | Yes |
| Works 100% Offline | Yes | Yes | Yes |
Look at what Clients says about us,
FormAPI has made handling submissions so much smoother. The custom API routing is super useful, and the spam filtering saves us tons of time. It does exactly what we need, without any complications.
Mohammed Mustafa K
Frequently Asked Questions
Frequently Asked Questions
Yes, the core app is free forever. You only need an account for optional cloud backup.
No. Install and generate TOTP 2FA codes offline immediately. Sign in only if you want Cloud Sync.
Zunoy offers encrypted cloud backup, multi-device sync, and more customization without requiring an account.
No. Secrets stay on your device. If you enable Cloud Sync, backups are encrypted on device; we can’t decrypt them.
If you had backup enabled, you can recover your codes. Without it, they are only on that device.
Authenticator
Protect your accounts with Zunoy Authenticator – a secure 2FA app with cloud backup
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Authenticator