Groups, by invite
Private groups for your friends, and public ones pinned to your city, your region or your country. You can see the public ones. Getting into a group somebody made still takes an invite from inside, because a group anyone can walk into is a group a man can walk into.
How it works
Start a group, give it a name and say what it is for, then choose Just my friends or Anyone can find it.
A group anyone can find is pinned to a city, a region or a country, so women nearby can see that it exists.
Seeing a group is not joining it. Getting in takes an invite code from a woman already inside.
Leaving is for good. You cannot read anything sent after you go, and coming back needs another invite.
Where to find it
Circles → Groups near you → Start one.
What it will not do
Siren has no directory of women to browse. You see the members of a group only when you are in it.
Why it works this way
A group anyone can walk into is a group a man can walk into. Letting women see the groups near them, while keeping the door closed without an invite, gives them something to find without giving it to anyone who searches.
Free forever, for every woman here.