A JustOnce shared space is one you own on Plus or Pro and invite anyone into by email; members join free. Each of them asks their own assistant and gets the answer credited to whoever shared it, or opens the space in the JustOnce web app. When your assistant asks to share something or invite someone, nothing is shared or sent until you approve it in JustOnce.
Approve it in the app — we ask you to confirm it’s you. Requests expire after 24 hours.
What did we agree with the printer?
500 copies by 14 November, $1,240 with delivery.
Shared with you by Sam
On Plus (1 shared space) or Pro (3). Your own vault stays private.
No account needed: they create a free one, then accept. Members join free.
Share a memory, or ask your assistant to save a document into the space. When your assistant asks to share something or invite someone, nothing is shared or sent until you approve it in JustOnce.
Each member’s own assistant recalls what’s shared with them, credited to the person who shared it. Or they open the space in the JustOnce web app.
Share the memory a file is attached to and the file goes with it — members open it in the web app.
Save our car insurance policy and share it to “Home”.
Saved: excess $800, renews 2 February. Use this link to attach the PDF; the share waits for your approval.
One-time upload link · 15 minutes
Her Claude reads the car insurance PDF and saves what it says; she attaches the original through a one-time link. The share into “Home” waits for her.
Share 1 item into “Home”
Car insurance: excess $800, renews 2 Feb · PDF attached
Nothing goes into the space until she approves it in the app, where we ask her to confirm it’s her. Requests expire after 24 hours.
What’s our car insurance excess?
$800. It renews on 2 February.
Shared with you by Sam
The answer comes back credited to Sam. The policy itself is in the space: Jo opens it in the web app.
Invite anyone by email — no account needed. They create a free one, then accept.
From your space in the web app, or by asking your assistant (you approve it first).
Someone new is emailed a link to create a free account with that address.
On the web, or from inside Claude when they connect it. The invite is waiting for them.
They’re in the space, as a member, free. Nothing you haven’t shared is visible to them.
Members join free. Recall and search are always free, on every plan.
Plus includes 1 shared space and Pro 3. Free is your personal space only.
Invites lapse after 30 days if someone new doesn’t sign up. An invite your assistant sends is Viewer; you set Editor in the web app.
Invite people to a shared space as Owner, Editor or Viewer. Anyone can leave.
Your personal vault is never shared. A shared space holds only what someone deliberately put into it. Nothing is copied: close the space and access ends; your memories stay yours.
When your assistant asks to share something or invite someone, nothing is shared or sent until you approve it in JustOnce.
To share memories into a space, invite someone, or save a file there.
The request waits in JustOnce. Nothing is shared or sent in the meantime.
Approve it in the app — we ask you to confirm it’s you. Requests expire after 24 hours.
Your assistant wants to share 2 items into “Renovation”
Members of Renovation: Sam (Owner), Jo (Viewer)
Approval covers shares, invites and files saved into a space. Unsharing, editing a memory already in a space, closing a space and forgetting apply at once; forget means gone — there’s no restore.
Security in detailOwners and editors write a space’s rules and key facts. Each member’s own Claude picks them up when a new chat starts, credited — “Set by Sam (Owner) · 3 Oct 2026”.
Two adults, one home, and the things one of you always ends up remembering.
Bin night is Tuesday. Recycling on even weeks.
Set by Sam (Owner) · 3 Oct 2026
Brothers and sisters looking after a parent, and Dad’s care instructions in one place.
Call Dad before you book anything for him.
Set by Sam (Owner) · 3 Oct 2026
A VA, a bookkeeper or a contractor who needs to know how you do things.
Acme invoices: PO number, to ap@, net 14.
Set by Jo (Owner) · 3 Oct 2026
Rules are guidance for that space’s matters, never permission: they can’t share, forget, invite or upload anything for anyone.
Every member sees who set each rule and when, and can turn a space’s rules off for themselves.
Illustrative. The rules shown are examples.
A household is one example of many. Each space holds exactly the people it involves.
One of you is the household's search engine: which insurer, the policy number, when the car is due, what the plumber said. Share the policy into a space and the other person asks their own Claude instead: the excess and the claims line. The policy file is in the space, in the web app, if they want the fine print.
What goes in: Insurance policies with the original attached, utility accounts, the car service history, who the good tradie was.
Two or three siblings, one parent, and paperwork that lives in one person's head. Talk to your parent first: it's their information, so ask before you save it. Then each of you asks your own Claude, or opens the space on the web.
What goes in: Letters, policies, account references, appointment dates and who to call. Records, not health advice.
They need a slice of your context, not your whole vault. Give them a space with exactly that slice; their own Claude answers from it, credited to you.
What goes in: Suppliers and billing contacts, receipts and invoices, travel preferences, the documents for one project.
The decision and why, the client brief, what was agreed on the call. Share it once and your colleague asks their own Claude instead of asking you.
What goes in: Decisions and their reasons, briefs, meeting outcomes, and the documents behind them.
Snap the term planner or the game schedule once and share it to the family space. Either parent asks their own Claude when and where.
What goes in: Term dates, the training and game schedule, uniform days. Save the schedule, not your children’s personal details.
House-sitter, dog-walker, the friend feeding the cat. Everything they need, none of what they don't, and you close the space when they're done.
What goes in: Alarm and bin days, vet and emergency contacts, the feeding routine, which neighbour has the spare key.
Separate spaces mean separate memberships. One edge: your assistant’s search has no space filter. It searches everything in your own vault, whichever spaces you’ve shared it into, and what others have shared with you, so name the client or team when you ask. In a big team, each search covers what up to eight people shared with you (those who shared most); beyond that your assistant is told, and can read a space directly.
Teams and agenciesBrand voice lives in one person's head, the pricing rationale in a thread nobody can find, and the reason you rejected that approach in March is gone. Put the decisions somewhere the whole team can read them — including why, not just what.
Engineering, GTM and support don't need each other's context and shouldn't be wading through it. Each team gets its own space with its own membership. Someone who works across two simply belongs to two.
The agency problem: you write for Client A, then Client B, and the model starts blending their terminology and positioning. A space per client keeps the membership separate: only the people on that account are in it. One edge: your own assistant's search isn't fenced by space, so name the client when you ask.
A freelancer joins for six weeks. They need this project's context and nothing else. Add them to that one space as an Editor, and close it when the engagement ends — which revokes what the space shared.
Someone leaves, or a book of accounts changes hands, and what actually mattered — what was promised, who the real decision-maker is, why this account is delicate — leaves with them. What they shared into a space stays readable to the rest of the space after they leave, until the space owner removes it or they forget it. To take a share back yourself, unshare it before you leave.
Instead of a week of "ask whoever's free", the new person reads the space, including everything shared before they arrived. (Asking what was true in March works on your own memories; in the web app a shared memory shows its current version.)
When a memory is shared into a space, every member can read it in the web app, and their own Claude recalls it when it searches, credited to the person who shared it. Viewers can only read it; the space’s Owners and Editors can correct it, and only the person who shared it can erase it.
The precise edges: it is your assistant’s memory search that reaches shared spaces. Topic-context briefings and your core profile draw on your own vault only. A correction by an Owner or Editor is what every member’s assistant recalls from then on. A space’s house rules are separate: each member’s own Claude picks them up when a new chat starts. Your assistant can also create spaces and take memories back out; sharing memories in and inviting people wait for you to approve them in JustOnce, and we ask you to confirm it’s you.
A document travels with the memory it is attached to: share the memory and the file is in the space, where members open it in the web app, while their assistant recalls the facts. We’d rather spell the edges out here than have you find them in week two.
Paste any of these into Claude once you’ve connected it to JustOnce.
Creates the space and asks you to approve the invitation in JustOnce; nothing is sent until you do. They join as a Viewer when they accept (no account needed yet: someone new is emailed a link to create a free one), and you can promote them to Editor in the web app.
Create a shared space called "Smith Household" and invite sam@example.com to it.
Lists every space you belong to, personal and shared, with its status.
What shared spaces am I part of, and which ones are still active?
Searches your own vault, then asks to share those memories into the space; once you approve it in JustOnce, the other member can read them.
Find everything you know about our home and contents insurance, the mortgage, and the car registration, and add it to the "Smith Household" space.
Your assistant does the reading — JustOnce runs no OCR — then gives you a one-time upload link for the original (works once, 15 minutes). When it lands, the facts are saved with the photo attached, and the share into the space waits for you to approve it in JustOnce.
Read this photo of our home and contents insurance policy. Save the insurer, policy number, excess, claims line and renewal date to JustOnce as one memory, keep the photo attached to it, and share it into the "Smith Household" space.
Recall reaches the shared space: the facts come back attributed to whoever shared them. The policy file is in the space too: open it in the web app. No download link, no shared folder.
A pipe has burst. What is our home insurance excess and who do I call? Tell me who saved it.
Creates the space, then asks you to approve the invitations and the shares in JustOnce; nothing is sent or shared until you do. One paste instead of twenty clicks.
Create a shared space called "Acme — Client" and invite jo@myagency.example and ravi@myagency.example. Then add everything you know about Acme: their brand voice, their competitors, and the campaigns we have run for them.
Gives them exactly one project's context. Everything else in your vault stays where it is.
Create a space called "Website rebuild — contractor" and invite dev@contractor.example. Add only the memories about the website rebuild brief, the design decisions we have already made, and our code conventions. Do not add anything about other clients.
Recall reaches your shared spaces too: a note a teammate shared into "Acme — Client" comes back alongside your own memories, attributed to whoever shared it.
What do we know about Acme's brand voice?
Un-shares those memories. They stay in your own vault.
Remove the memories about our internal pricing from the "Acme — Client" space.
Archives the space and revokes the access it granted. Only the owner can do this.
The website rebuild is finished — close the "Website rebuild — contractor" space.
Haven’t connected an assistant yet? It takes about a minute.
Something else? Ask us.
Yes. There is no organisation boundary and no email-domain restriction — you can share with a partner, a family member, a VA, a client, or a contractor at another company. Invite anyone by email — no account needed. They create a free one, then accept.
Yes. Your assistant's memory search recalls memories other members shared into your spaces, alongside your own, each clearly attributed to the person who shared it. Shared memories are read-only to Viewers; Owners and Editors of the space can correct them, and only their owner can erase them. A correction by an Owner or Editor is what every member's assistant recalls from then on. In a big team, each search covers what up to eight people shared with you (those who shared most); beyond that your assistant is told. Topic context and your core profile draw on your own vault only. Your assistant can also read a whole space directly. Documents shared into a space open in the web app.
Yes, by sharing the memory it is attached to. A document always lands in your own vault first, attached to the memory your assistant wrote from it; share that memory into a space and the file is in the space: members open it in the web app, and each open is logged. One edge worth knowing: if your assistant split a long document into several memories, share all of them — a member sees exactly the memories shared, not the rest of the document’s set.
No. Your personal space is private and can never be shared — that is enforced in the product, not just a setting. A shared space only ever contains what you or another member explicitly put into it, and you can remove something at any time.
An Editor can read the space and add or change shared memories. A Viewer can read it. Both can share their own memories into the space. Only the Owner can invite people, change roles, remove members, or close the space. There is no separate Admin role.
Yes, and that is the intended shape. Each space has its own membership, so the people in engineering and GTM, or on Client A and Client B, see only their own space. Someone who works across both simply belongs to both spaces — and their own assistant’s search isn’t fenced by space, so they should name the client or team when they ask.
No. Members join a shared space free. Recall and search are free on every plan, so someone you invite can read the space without a paid subscription of their own.
The Owner removes them from the space and their access ends. What they shared stays readable to the rest of the space after they leave, until the space owner removes it or they forget it, because a shared memory lives in the vault of the person who shared it. To take a share back yourself, unshare it before you leave. If a whole engagement is over, closing the space archives it and revokes everything that space had shared. Anything you shared into it stays in your own vault — closing a space doesn't delete your memories.
Every membership change and document access is written to an append-only audit log, and the record of who shared what is stored. Your AI assistant sees it too: memories it reads from a space are attributed to the member who shared them. Being precise: the web app itself still shows no per-memory "added by" label, so this is not something you can see at a glance while reading a space there.
Free: 20 memories and 10 document pages a month, no card. Connecting takes a minute at a computer.
Works with Claude, ChatGPT (Business, Enterprise, Edu), Cursor, VS Code, Gemini CLI and Codex
