I would love to have just a nice OBD II app that allows me to diagnose and reset params in my car. All the solutions that I've found so far seem to be thrown to

I would love to have just a nice OBD II app that allows me to diagnose and reset params in my car. All the solutions that I've found so far seem to be thrown together and have generally horrendous UI. Maybe they would be willing to sell a lower tier product for the iPad with just that and none of the geo features? If so, TAKE MY MONEY.