Tutanota | Logo Concept

Practice. Took a look at the existing tutanota logo. I kept the color red since it is the main brand and I believe it is a reference to the Hanover flag. The shape in the existing flag I believe is the Seinen river so I also kept that as a reference to the history of the company. Due to the current shape of the rounded off logo it feels very much as an iOS app - I went for a simpler circular look.