Seamless Authenticator Cloud Sync and Encrypted Backup
Never lose access to your accounts again. Turn on authenticator cloud sync for zero-knowledge encrypted backups that restore your codes across all your trusted devices.
STAY PROTECTED
Why You Need Authenticator Cloud Sync
Device theft, accidental drops, and hardware upgrades happen every day. When you sync authenticator app vaults with Zunoy, you protect your digital identity from permanent lockout.
Never Get Locked Out
Recover your accounts instantly if you lose your phone. Keep your codes backed up safely so you can restore authenticator app access on any trusted device.
Sync Across Devices
Access your 2FA tokens seamlessly across your iPhone, iPad, and Android devices. Any added account updates across your entire hardware fleet automatically.
Seamless Device Upgrades
Getting a new phone is effortless. Just log in, enter your encryption key, and restore backup accounts in seconds without re-scanning dozens of setup QR codes.
HOW IT WORKS
How Authenticator Cloud Sync Protects You
Understanding the sync flow is simple. Here is how our zero-knowledge architecture ensures total privacy for your backup OTP codes.
- 01
Encrypt On-Device
When you enable sync, your 2FA secrets are encrypted on your local hardware using your personal encryption password before anything leaves your device.
- 02
Secure Cloud Storage
Only encrypted ciphertext is sent to the cloud. We store your encrypted backup securely, but we never hold the mathematical key to decrypt or view your secrets.
- 03
Multi-Device Sync
Sign in on a secondary phone or tablet to sync authenticator app data in real time, keeping your active verification codes consistent everywhere.
ZERO KNOWLEDGE
True End-to-End Encrypted Cloud Storage
Your privacy is non-negotiable. Unlike standard cloud backup services that store unencrypted tokens, Zunoy operates on a strict zero-knowledge architecture. As a private 2FA app with backup, your data is locked with client-side encryption. We cannot view your account names, scan your secret keys, or monitor your login activity. Only you hold the key to decrypt and restore authenticator tokens.
SIMPLE MANAGEMENT
Enable and Restore Authenticator App Data
Activating your backup or moving to a replacement device takes less than two minutes. Follow these direct steps inside the app.
How to Enable Cloud Sync
Open Zunoy, go to Settings, and select Cloud Backup. Create an account, turn on Cloud Sync, and establish your personal encryption password to start backing up your accounts.
How to Restore on a New Device
Download Zunoy on your new device, sign in with your account credentials, and enter your personal encryption password to complete your account recovery instantly.
Your Personal Key and One-Tap Deletion
You maintain absolute data sovereignty. Control how your data is encrypted and delete your remote storage whenever you choose.
Your Personal Encryption Key
You create your personal key; we cannot reset, view, or recover it if lost. It is strictly required to decrypt your vault when you restore authenticator app tokens on new hardware.
One-Tap Backup Deletion
You can delete your encrypted cloud backup anytime with a single tap. This instantly purges your cloud copy while keeping your offline codes intact on your current device.
GOT QUESTIONS?
Frequently Asked Questions About Authenticator Cloud Sync
Everything about backing up and syncing your 2FA codes.
How does authenticator cloud sync work?
Authenticator cloud sync encrypts your 2FA tokens directly on your device using a personal key, then uploads the encrypted backup to secure cloud storage for synchronization.
How to restore authenticator codes on a new phone?
Install Zunoy on your new phone, sign in with your account, and enter your personal encryption password to instantly restore your accounts and sync across devices.
What is the personal encryption key, and can Zunoy recover it?
Your personal encryption key is a unique password you create to lock your backup. Zunoy cannot reset or recover it if forgotten, ensuring true zero-knowledge privacy.
How to backup an authenticator app securely?
Open Zunoy Settings, tap Cloud Backup, sign in, and enable sync. Set your personal encryption password to backup authenticator app data with client-side protection.
Is Zunoy a zero-knowledge 2FA app with backup?
Yes. Because your vault is encrypted locally before uploading, Zunoy servers only store unreadable ciphertext. We cannot view or decrypt your secret keys.
How do I sync authenticator app data across multiple devices?
Sign in to your Zunoy account on your secondary iPhone, iPad, or Android device and enter your encryption key. Your codes will sync across devices automatically.
Enable Authenticator Cloud Sync Today
Never worry about losing your two-factor authentication tokens again. Download Zunoy, set up your encrypted backup in minutes, and sync authenticator app accounts across every device with total peace of mind.
Zero-knowledge
Multi-device
One-tap delete
Offline codes