I have been advised to get Carista and the VAG DPF android app as we have issues with a VW T5, EGR DPF etc. I know nothing about these things, I have heard bits and pieces about Carista on here and just ran a search which showed loads of people have it and a variety of things that can be done with it. I also have Vag-com which I use for fault codes and service light re-sets but never really got to grips with the coding side. I don't want to just buy carista to monitor a DPF and never use it for anything else, if I do get it am I likely to find it more user friendly than Vag-com and what other kind of things is it good for. Also I see from the pricing on the website, some services are free but others chargable. The app I am supposed to get doesn't seem to be listed there so unsure where I get it from, any advice greatly appreciated as I am not very 'techie' minded.