I was part of creating Persona - an email client suite across iOS and Mac platforms during 2013-2014, both as co-founder and designer.
It was developed as a study during my stint at the Copenhagen Institute of Interaction design, which later grew into it's own product and startup. We were live on the appstore to critical reviews and our main product site lives here.
Persona was designed to change the perception and experience of using email by especially focusing on People, the Conversations between them and the Knowledge shared in emails today. It represents and sorts email in an uncluttered zen-like format with quick editing and controlling interactions throughout the product.