Webasto has summarized all the useful functions for the auxiliary heater with this app. The look is simple and clear. Very positive is the option to control the auxiliary heating not only via SMS, but also via telephone. This is for those who sense that have a telephone flat rate without free SMS. The price for this app, however, is outrageously expensive! If you consider that it diverse - also free - gives Apps and controlling the heater by telephone and / or SMS is possible even without any app, ten euros are really steep! Especially when you consider that the operation is not really easy, because unfortunately there are no buttons for the wider functions, as must be taken cumbersome via settings.