For residents.

Someone in your building got a code for Knock and sent it to you. Here is what you need to know, with no sales pitch.

What is this?: A private bulletin board for your building: committee updates, things neighbours are sharing, and parking spots sitting empty. All in one place, without scrolling a WhatsApp group.
Who sees what gets posted?: Only people in your building: your neighbours, the committee, and anyone the building gives a role, such as the front desk. There is no directory of buildings, no search, and no way to join without a code from the building itself.
Will this spam me?: No. There's one notification budget for the whole app. Most things wait quietly behind an unread badge, and only genuinely urgent things push.
Do I have to take part?: No. You can just read. Nobody can see whether you read something, and nobody can make you post anything.
What if I don't want to share my parking spot?: Nothing happens. Sharing a spot is your call, every single time. It is not a standing sign-up, and nothing can make you feel bad about it.
How do I get in?: Someone in the building gives you a code. That's it. No paperwork, and no checks with the committee.
What does it cost me?: Nothing. Residents never pay for Knock, not now and not later.

Knock isn't here to sell you anything. It's here so the neighbour who can help knows that help is needed.