Docs

How to use Atrium

Guides for the vault, notes and calendar, sharing with family or a team, keeping your account safe, and billing.

Getting started

Create your account, set your master password and choose a plan.

  • Create your account and start a trialSign up with an email address, get 14 days of everything with no card, and learn the difference between signing in and unlocking.
  • Your master passwordThe one key behind your vault, notes and calendar. Why it never leaves your device, how to choose a good one, and why we can't reset it.
  • Choosing a planPersonal, Family or Business. Every plan includes the vault, notes and calendar; they differ by people, storage and team controls.

Vault

Logins, secure notes, files, time-locked access, the generator, authenticator codes, import and export, and the browser extension.

  • Logins, secure notes and filesWhat you can keep in the vault, how it is encrypted, and how folders, favourites, search and the trash work.
  • Importing and exporting your vaultBring your passwords in from another password manager, and take your Atrium vault out again as an encrypted backup or as CSV/JSON.
  • Time-locked accessLock a vault item so it can only be opened inside the windows you choose, enforced by our server's clock rather than a setting in the app.
  • Schedule typesDaily, weekly, monthly, date-range and cron windows, with examples of when to use each.
  • The password generatorCreate strong random passwords when you add or edit a login, in the web app or the browser extension.
  • Authenticator codes in the vaultStore a login's authenticator key alongside its password and get a live one-time code right on the item, without a separate app.
  • Auto-lock and the clipboardKeys live only in memory, the vault locks after 15 minutes idle, and copied passwords are cleared after 20 seconds.
  • The browser extensionFill in logins on the sites you visit and save new ones, with the same encryption and unlock as the web app.

Notes

Markdown notes, links and backlinks, daily notes, templates and Obsidian import.

Calendar

Events, recurring events, tasks, reminders and ICS feeds.

Sharing and family

Sharing items, shared vaults, members, seats and break-glass requests.

  • Sharing itemsShare a vault item with another Atrium user without our server ever holding a key that can open it.
  • Shared vaults, members and seatsHow Family and Business accounts add people, share vaults with roles, and count seats.
  • Break-glass requestsOn Business, ask to open a time-locked item outside its window, with the owner's approval and a full audit trail.

Security and recovery

What we can and cannot see, the Recovery Kit and the honest limits.

  • What we can and cannot seeExactly what Atrium's servers can read for your account, vault, notes and calendar, and why.
  • Your Recovery KitThe only way back into your data if you forget your master password. How to save it, where to keep it, and how recovery works.
  • Zero-knowledge and its limitsWhat client-side encryption protects you from, what it can't, and what we do about the gaps.
  • Passkeys and two-step sign-inAdd an authenticator app or a passkey to your Atrium sign-in, and use a passkey to unlock.

Billing

The 14-day trial, yearly billing, seats and what happens when a plan ends.

  • Trial, plans and billingThe 14-day trial, yearly billing, paying by card or PayPal, seats, failed payments, and what happens when a plan ends.

Troubleshooting

Sign-in codes, unlocking, autofill and reminders that did not arrive.

  • Common problemsSign-in codes that don't arrive, unlocking trouble, autofill that doesn't appear, and reminders you didn't get.