All direct and group messaging on Signal iOS is private. To start a group chat on iOS follow the steps listed below.
- Tap on compose .
- Tap on start group .
- Name or label your Group.
- Tap on the group avatar .
- Tap on contact names to select contacts to add.
- Tap to create the group. At this point the group is created. All members will immediately see each other in this group and anyone can message in the group. Members can choose to leave the group and can not get kicked out of a group.