1. Go to the Map screen.
2. Press 'Invite new member' button.
3. Choose the way to send an invite.
As an example - via email.
1. Choose an email via contact list in your phone. If the email is not in your contacts, tap the yellow “+” button at the bottom right corner to add it manually.
2. Click "Done"
3. Email with invitation link will appear
4. Click "Send"
4. Wait until the other member installs the app and accepts your invite. Maybe your friend needs help installing GeoZilla or accepting your invite. Give them a hand.