Inflated Price for in App Purchases

This e-Reader for the German News Magazine "der Spiegel" is like a copy of Zinios e-Reader only with the disadvantage of having yet another app on my iPad and actually with subscription prices far higher than offered for comparable magazines through Zinio. Sorry, but Im really prepared to pay for my "Spiegel", but not through the nose, which means back to reading the web site and now and then buying the paper version, when back in Germany.

GHPaw about SPIEGEL Kiosk, v1.2.3