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Frequently asked questions
Answers to common questions about Citadel: the master password, encryption, privacy, sync, backups and plans.
How does Citadel secure my passwords and documents?
Citadel Password Manager encrypts your data with AES-256-GCM, a symmetric encryption algorithm. AES-256 is a widely used standard, approved by the U.S. government for protecting classified information. The encryption key is derived from your master password using PBKDF2 with 650,000 iterations.
Is my data shared with Citadel?
No. Citadel uses zero-knowledge encryption: your data is encrypted on your device before it is synced, so neither we nor anyone else can read it. You are the sole owner of your data. We do not and never will compromise on your privacy.
What data do you collect?
Only your account ID, which we use to sign you in and sync your vault across your devices. Everything in your vault is end-to-end encrypted on your device, so only you can read it.
How do I sync my devices with Citadel Password Manager?
When you add a password or document to your Citadel Password Manager, the app automatically encrypts it and sends the encrypted data to the cloud. All your devices receive the new data automatically and seamlessly for you.
Should I make a backup copy of my data?
You should only back up your master password. All other data is safe, encrypted and readily available for you in the cloud.
What is the difference between the Premium and Free versions of Citadel Password Manager?
The Free version of Citadel Password Manager does everything the Premium version does, but it only allows you to store a maximum of 25 entries, such as your passwords, driver's license or credit cards, combined. Also, you can only synchronize your data across 2 devices. To take advantage of unlimited storage, as well as unlimited number of devices, you need our Premium version.
Why Citadel Password Manager?
| Feature |  Citadel | LastPass | 1Password |
|---|---|---|---|
| Free plan | Yes | One device type | 14-day trial |
| Multiple devices on free | Yes | One device type | Paid only |
| Cloud backup on free | Yes | Yes | Paid only |
| End-to-end encryption | Yes | Yes | Yes |
| Strong encryption | Yes | Yes | Yes |
| Password generator | Yes | Yes | Yes |
| Password autofill | Yes | Yes | Yes |
| Secure notes | Yes | Yes | Yes |
Comparison of free plans. Last reviewed November 2026.