christoph.ch: Startup Screen
christoph.ch: Menu I - Options
christoph.ch: Menu II - Available Issues
christoph.ch: Photo Feb 17, 7 38 42
christoph.ch: Confirmation of In-App Purchase
christoph.ch: Opt-In for Sharing of personal data
christoph.ch: Menu II - Available Issues after Purchase
christoph.ch: Menu II - Available Issues after Purchase
christoph.ch: Menu II - Available Issues - New Issue Downloading
christoph.ch: Confirmation Popup - Issue Downloaded
christoph.ch: Settings Screen
christoph.ch: How-To Page at the Start of a new Issue