Interrupts since the update installation with the error message: "A package with the same name or conflicting signature is already installed." Uninstall the old app does not solve the problem, as it is written in another review! So do not install, otherwise you stand no app because, as in the case Sparkasse +. The quality of the Amazon App Store lets lately after unfortunately. But as I think it is not on the app itself, but not to give to the other way of installing as on Google Play, because there seems to be the problem, I admit the app still 5 stars! It is, if they can be installed definitely worth it.