What people use it for

Start from the sentence in your head rather than from ours. Each one below opens a page that says plainly how it is done, what the phone at the other end is free to refuse, and where the product stops.

Telling customers something

One counter, one workshop, one waiting room. These channels carry a ticket or a job number rather than a name — this product broadcasts and has no way to address one person, which is a limit worth knowing before you build on it.

Reaching a team

Sealed channels: absent from search, joinable only with a code, and unreadable to anyone without one. A rota, an on-call group, a shift that needs covering tonight.

Something a machine sends

One POST, one key. Your assistant, your monitoring, your shop or your house can put a line on a phone without anybody opening this site.

Telling a town, a school or a crowd

A public handle people subscribe to once, printed on a poster and permanent. The same message costs the same whether four people are listening or four million.

In your own life

A family, a building, a lift share, a trip. No account and no phone number at the other end, and a group this size fits inside the free tier.