Essentially a replacement for other professional tools. The apps are nice to have for quick things, especially when helping out friends. But the long coding in the pro version is outstanding. Windows up/down from key fob, true ESC disable, adjust XDS, kill the soundaktor, lighting system tweaks and many many more wonderful tweaks done immediately after receiving it. All the coding is easily found online or on forums, search around and learn how to do long coding, it's a breeze!

The app + obd2 adapter combo has saved me a few hundred pounds enabling features available on my car.

Awesome product, awesome customer service! Bought this to tinker with my new Audi and it is truly top notch! Easy to use, and if you look in the right places, will open up a lot of cool features on your car! Customer service is great as well. I contacted them over the weekend and Monday everything was resolved! Best money spent on a fully functioning OBD tool!