I have a 2008 model E70. I use the Bluetooth dongle supplied by INVINI and have zero issues with the app. It must be said though that the product is not specifically marketed as a coding app but rather the coding ability is simply one of the features within the product. For the diy service guy I think this app is a winner! The ability to register a new battery (including specify type), check and reset service codes, easy to understand fault code diagnosis, parameter monitoring - very handy feature! And as a bonus you get to code the most commonly requested mods.