Just downloaded the nostr:npub12vkcxr0luzwp8e673v29eqjhrr7p9vqq8asav85swaepclllj09sylpugg iOS app. Really slick but I am having some issues getting my account loaded properly

Have my npub in there but does not look like my private keys ever made it in the app so I am unable to do anything other than browse

Any ideas how to get my private keys loaded into the app? Do I need to delete account and then try again from scratch?