i downloaded g-tac for the iphone before seeing that dynolicious supposedly is better. g-tac is 5 bucks, dynolicious is 13.
anyone used em or have an opinion?
for those unaware, the programs use the iphones accelerometer to calculate 0-60 and 1/4 mile speed and acceleration etc. i think the more expensive one supposedly calculates HP based on inputted weight of the vehicle.