To create a nickname on iPhone, go to the Confide home screen and swipe right on a contact. Then tap the nickname icon (the image of the person with the pencil) and create a nickname.
To create a nickname on Android, go to the Confide home screen and tap and hold on a contact. Then tap the nickname icon (the image of the person with the pencil) in the top app bar and create a nickname.
Nicknames will only be seen by you and won’t be visible to your contacts. Nicknames are part of Confide Plus.