Invite
Give someone the gift of not being forgotten
No gift subscription to buy, because there is no subscription. Starting a world and sending the invite code is the whole gesture, and it costs nothing.
How it works
One code, two people.
One of you starts a world, sets the anniversary, and gets an invite code or link. Send it to the other person, they join with it, and that world belongs to the two of you and nobody else. A world that already has two people in it cannot be joined by a third.
Why this beats a subscription
There is nothing to buy.
Other relationship apps sell a gift subscription: pay once, unlock the other person's account for a while. KTL has no paid tier to unlock, so the gift is smaller and more direct than that. It is just you starting something and asking them to join it.
Good moments
When to actually send it.
An anniversary
Start a world together on the day itself, and let the streak begin there.
After a hard week
A quiet way to reset, without either of you having to bring it up first.
Right before a visit
So the map already has somewhere to fill in the moment you arrive.
For no reason at all
Most good ones start with no occasion attached.