Three rooms, one key

Vault

A password manager that cannot read your passwords

Every item is encrypted on your device under its own key before it is uploaded, including its name and fields. Search, folders and favourites work on your device, on data only you can decrypt.

What makes it different: any item can be locked to a schedule, so it opens only during the windows you choose.

What you store

• Logins, bookmarks and secure notes
• Files, encrypted before upload
• Folders, favourites and a trash you can restore from
• A password generator
• Authenticator (TOTP) codes for a login, paste the key or scan its QR code

Time-locked access

• Daily, weekly and monthly windows
• A date range, such as "not before 1 March"
• Cron rules for anything else
• Break-glass requests approved by the item's owner (Business)

Bringing passwords in and out

• Import from 1Password, Bitwarden, LastPass, Dashlane, Proton Pass, NordPass, Keeper, KeePass/KeePassXC, Chrome, Firefox and Safari
• Export as an encrypted .atrium backup, or as unencrypted CSV/JSON to move to another app
• Both work on every plan, including a read-only lapsed account — never gated by trial or billing

Sharing and everyday use

• Share an item with another Atrium user
• Shared vaults with roles (Family and Business)
• Browser extension that fills in your logins (coming soon)
• Copied passwords, and copied authenticator codes, are cleared from the clipboard after 20 seconds
• Auto-lock after 15 minutes idle, with a warning first
• An audit log of unlocks, shares and schedule changes

Notes

Markdown notes that stay yours

Write in plain Markdown and link your ideas together the way Obsidian users already do. Notes, file names and attachments are encrypted on your device; search runs on your device too, because our servers cannot read what they would need to search.

What makes it different: your notes go in and out as ordinary Markdown files, so you are never locked in.

Writing and linking

• Markdown files in folders, in one or more workspaces
• [[Wikilinks]] and a backlinks list on every note
• Tags
• Full-text search
• Daily notes and templates

Safety and portability

• Version history you can restore from
• Import an Obsidian vault folder or loose Markdown files
• Export as a zip of Markdown files
• End-to-end encrypted, including file names

Calendar

A calendar that keeps the details to itself

Event titles and details are encrypted on your device. The times of events are not: our server needs them to send reminders on time and to work out recurring events. We say so here instead of hiding it.

What makes it different: reminder emails say when, never what. Our reminder service never has your titles.

Events and tasks

• Several calendars, each with its own colour
• Timed and all-day events
• Recurring events, with changed or skipped occurrences
• Tasks
• Reminders as in-app notifications or email

Bringing calendars in and out

• Import and export ICS files
• Subscribe to ICS feeds by link. Our server fetches these feeds, so subscribed calendars are not end-to-end encrypted
• Public holiday calendars for Canada and the United States

Your account

One key for everything, and a way back

Signing in and unlocking are separate. You sign in with a code sent to your email, plus a second factor if you add one. Then your master password unlocks your data on your device.

• Email code sign-in, with optional authenticator app (TOTP) or passkey
• Unlock with your master password or a passkey
• A Recovery Kit you save at setup, as a text file or QR code
• Family plans for up to 6 people; Business with seats
• Runs in your web browser, with nothing to install. Desktop and mobile apps and the browser extension are coming soon