A Space can have more than one person in it. The owner looks after its subscription and decides who is in; members share the work of keeping in touch. Here is what each can do.

A Space can be shared: a couple keeping track of friends together, a family keeping one record of relatives. Everyone in it sees the same people, connections and occasions, and everything one person changes, the others see.

Two kinds of people are in a shared Space:

The owner. Every Space has exactly one, always: whoever made it, or whoever it was handed to. The owner looks after the subscription and decides who else is in.
Members, everyone the owner has invited. They do the everyday work of keeping in touch.

Inviting someone

Open Personalization (the gear icon), choose Manage members, and enter the person's email address. They get an email with a link that works once, for 14 days. If they make a new login from the link, they join as it's made; if they sign in instead, they come back to the invitation and choose Join. Someone you invite doesn't need a place on the waitlist: the invitation is their way in.

A few things to know:

The email comes from Longtime and names you by your login email address, not your name, and doesn't say what your Space is called. Your friend sees that only after they sign in, so an invitation can't be dressed up as something it isn't. Longtime tells you this when you send it.
Sending again gives them a fresh link and retires the old one. You can send to one address three times in all, and have up to ten invitations waiting at once. You can cancel one that is still waiting.
Anyone can say "don't invite me again" from the link in the email. After that, no one can invite that address to Longtime. Your invitation stays on your list, unanswered, until it expires; you aren't told why. Someone who changes their mind can undo it from the same link, or ask for a confirmation link at my.longtime.app/invitations/allow-again.
Only the invited address can join. Someone who makes a login from your invitation signs up with the address you sent it to; the form won't take another. If they'd rather use a different address, they change it in their profile once they've signed up — see Profile and security. Someone who already has a login joins by signing in with it, if it uses that address. If their login uses a different one, invite that address instead. A forwarded invitation lets nobody else in.
A new login still has a few steps before the Space opens: accepting the terms, the AI notice, confirming their email address and turning on two-factor authentication. See Signing up.

Inviting someone doesn't change what the owner pays: a Space is one subscription however many people are in it.

What an invited member can't do

Someone who came in by invitation can use the Spaces they're invited to, but can't start a Space of their own while Longtime has a waitlist. Their Spaces list offers Join the waitlist, which puts them in line like anyone else; when their turn comes they get an email, and from then on they can start Spaces like any other customer. There's no code to enter.

What members can do

Members are trusted: someone you let into your Space can do nearly everything you can. Five things stay with the owner: the subscription, deleting the Space, who is in it, handing it on, and other people's notes. What a member can do is the same for every member.

People, connections and occasions

What	Owner	Member
See everyone, every connection and occasion	Yes	Yes
Add and update people and connections, with the interview or by hand	Yes	Yes
Confirm planned connections, and answer birthday prompts	Yes	Yes
Make occasions and decide what belongs in them	Yes	Yes
Delete or merge people, connections and occasions	Yes	Yes
Review Suggestions	Yes	Yes

Nobody, the owner included, can delete the record of someone who signs in to the Space, their own "YOU!" included.

Notes

What	Owner	Member
Write notes	Yes	Yes
Delete their own notes	Yes	Yes
Delete someone else's note	Yes	No

A note is always signed by the person who wrote it.

Circles, search and Pools

What	Owner	Member
Put people in circles and take them out	Yes	Yes
Make, rename and delete circles	Yes	Yes
Search, and make and use Pools	Yes	Yes

Bridges

What	Owner	Member
Bring their own calendar into the Space	Yes	Yes
Import a file, for review or straight in	Yes	Yes
Export everyone	Yes	Yes
Publish a birthdays or connections feed	Yes	Yes
Share a person with a Flash Bridge	Yes	Yes
Remove someone else's feed, import or Flash Bridge	Yes	Yes

The Space itself

What	Owner	Member
Rename the Space or change its timezone	Yes	Yes
See who else is in it	Yes	Yes
Leave it	No	Yes
Invite people, or remove someone	Yes	No
Hand the Space to another member	Yes	No
Start, change or cancel the subscription	Yes	No
End access and delete the Space	Yes	No

The owner can't leave the Space they own; they can hand it to someone else first.

Who changed what

Longtime keeps a history of who added, changed and deleted what in every Space. See Who changed what.

Leaving, and being removed

A member can leave from the Members page, or straight from their Spaces list if the Space can't be opened. It disappears from their list, and the Space carries on for everyone else. The owner can remove a member from the Members page. Either way, the person's own record (the "YOU!" they had in the Space) stays as an ordinary person, so the connections they were on still make sense; it is just no longer linked to a login. Coming back takes a new invitation.

If the Space needs a subscription, members see it in their Spaces list with the owner's name, so they know who to ask. Its Members page stays open even then, so it can still be handed over or left.

Handing a Space to someone else

The owner can hand their Space to another member from the Members page (Hand over…), so it carries on without them. The previous owner stays in the Space as a member. Only one hand-over can wait at a time: asking someone new withdraws the earlier request.

A paid Space: the member accepts

A paid Space changes hands when the member accepts and adds their card (and their billing address, if Longtime doesn't have it yet).

The request. The member gets an email, and the request waits on their Members page for 14 days. They can accept or decline it, and the owner can cancel it.
The answer. The owner gets an email when the member takes over, and when they decline. If they decline or don't answer in time, the owner also sees a note on the Members page and can ask again or dismiss it.
Who pays when. If the subscription is paid up, nothing is charged to the new owner until the previous owner's paid month runs out, so nobody pays twice; the previous owner's subscription then stops. If that's less than two days away, the new owner's subscription starts straight away.
If a payment is overdue, the owner can still ask a member to take over. The member's subscription starts straight away, and the owner's overdue one ends with nothing more owed on it.

Taking over doesn't use or give a free trial.

A free Space, or one with no subscription

It changes hands right away: there's nothing to accept, and the new owner gets an email saying it's theirs. A Space with no subscription can't be opened until its new owner starts one.

Closing your account

If you're closing your account and own a Space others use, Longtime offers to hand it to one of them first. For a paid Space, wait until they've accepted: closing your account deletes any Space you still own, so while a request is waiting, Longtime won't close it. See Deleting and closing.