Have I decided after long searches for the supposedly best RV-Navi, the BECKER TRANSIT 70 LMU PRO. So I should have bought the Mercedes among navigation devices, the price also suggests. For map updates and other functions I need the device but connect to the PC and now realized that there is no software for Mac. Had I bought an Aldi device, I would not be surprised, however, at a manufacturer of premium products, I have a compatibility with Mac for granted. My old Navigon has always been compatible with Mac and the direct competition, it is also Garmin. Too bad, now I have to send it back and buy the Garmin.