Necro bump! haha
On a serious note, I purchased OBDeleven Pro a little over a year ago thinking it would be a handy, cost-effective, smart phone compatible option to use on the Farmenwagen.
A year later, the Pro part of the "subscription" dropped away and I find that the basics I need to do fairly regularly are locked behind a minuscule supply of complimentary "credits." Well, last year I had hundreds of credits, today... 9. It costs 5 credits just to look at measuring blocks. Click out, and yep, going to cost you 5 more.
Go to look into checking soot/ash load in the DPF, and there's next to no information on the web or in their dedicated forums. Threads/posts are often ignored and if a reply is forthcoming, it's days or weeks away. If you get any follow up it's likely to be incoherent, insufficient or in another language lol.
Had I known, I would have done a lot more of the coding I'd been intending to do, like (for instance) disabling the auto door locks and DRL. Now, I have to hoarde the credits to ensure I have enough on hand at any time to purge the fuel filter canister when I do filter changes (every other oil change). (Otherwise, I'd have to buy more credits, despite having had a pro membership and the credits I'd purchased expiring in a year.) Driving ~300km per day, that comes more often than you'd think.
So while it saved my bacon (reading/clearing codes, for EG) at a low cost over the initial period of ownership, I wish I would have just purchased the HEX-NET cable and been done with it in the first place. At this point, I'll get one and just keep the OBDeleven in the car for reading/clearing codes on the road and keep the VCDS handy and where it belongs: in the shop in my tool chest, ready for the big boy jobs.