For Groups to be visible within the Church App, the Groups Tab will need to be added in the App.
Learn more about Managing the Tabs within your App Dashboard
For a Group to be visible within the Church App, it must first be set to "Show in App" within Tithe.ly People Groups.
Groups are managed in Tithe.ly People. Within Groups, an Admin can create a Group and enable it to be visible in the Church App as well as set the Groups Access to Public or Private.