If you would like to share all of your Paprika data (recipes, grocery lists, pantry, meal calendar, and menus) with another person, you can share the same Paprika account between multiple devices. All devices logged into the same Paprika account will sync together with the same underlying data.
Depending on which devices you have, each person may need to purchase a separate copy of Paprika for their own device. Then, instead of a creating separate Paprika account on each device, each person should login to the same Paprika account inside the app.