With Tribery, the more, the merrier! Add family members or friends to your journal so they as well can post pictures. You can invite as many people as you want for free.
In order to do so, on the mobile app, in the menu, click on “Tribery” logo at the top of the screen. Then, click on the green and white button “+”. You will then be able to choose how to share the invitation key (email, SMS, WhatsApp, Messenger, Instagram, etc.). The person you wish to invite can only join your journal by using this key in the "Join a journal" section of the Tribery app.
This key should only be used once by the new contributor. Afterward, (s)he will just have to log into the app with their account to be able to access the shared journal.