Join a family
Ask a parent to open Devices and “Link a device”. Their device shows a code.
On an iPhone or iPad
Add ChoreRally to the Home Screen first: in Safari, tap Share, then “Add to Home Screen”. Open ChoreRally from the Home Screen, choose “Join a family” and type the code there.
The Home Screen app keeps its own storage, so a device that joins in Safari would have to join again.