Performance Apps
I use "Harry's Lap Timer" for just about everything. Has GPS speedo to see actual speed vs displayed speed.
"Track Addict" is what I use when I want a video record overlaid with performance data.
https://play.google.com/store/apps/d...l.torque&hl=en
Then you need one of these (plugs into the OBDII port, and is Bluetooth),
For Iphone,
DashCommand, and you need a Elm 37 WiFi (not blue tooth)
Also note, in either case since the OBDII plug is aiming straight down in the car, get a low profile Elm37 so you are not hitting it with your knee when plugged into the port.





https://play.google.com/store/apps/d...l.torque&hl=en
Then you need one of these (plugs into the OBDII port, and is Bluetooth),
Amazon.com : Super Mini ELM327 OBD2 OBD-II Bluetooth Auto Diagnostic Tool for Windows Android Torque White : GPS & Navigation
Torque App for Android. See your car data - YouTube
For Iphone,
DashCommand, and you need a Elm 37 WiFi (not blue tooth)
DashCommand on iPad using OBD2 wifi - YouTube
Also note, in either case since the OBDII plug is aiming straight down in the car, get a low profile Elm37 so you are not hitting it with your knee when plugged into the port.





https://play.google.com/store/apps/d...l.torque&hl=en
Then you need one of these (plugs into the OBDII port, and is Bluetooth),
Amazon.com : Super Mini ELM327 OBD2 OBD-II Bluetooth Auto Diagnostic Tool for Windows Android Torque White : GPS & Navigation
Torque App for Android. See your car data - YouTube
For Iphone,
DashCommand, and you need a Elm 37 WiFi (not blue tooth)
DashCommand on iPad using OBD2 wifi - YouTube
Also note, in either case since the OBDII plug is aiming straight down in the car, get a low profile Elm37 so you are not hitting it with your knee when plugged into the port.
The Best of Corvette for Corvette Enthusiasts
The only thing that it will not do is give you are reaching time off the lights (logging starts at the cars acceleration).













