How accurate are the Track apps

[burke985]

This is my first mustang with it and was wondering how accurate they are as opposed to going to the track. Thanks in advance

 

[gt500_sti_guy]

Lol. Go to the track.

 

[burke985]

Lol. Go to the track.

Thanks for the input

 

[gt5.0coyote]

Thanks for the input

Was wondering the same thing. How off are they?