they both work but i believe i like the Torque app better but they both read the codes and cleared them for me. i didnt have time to do much more then just plug it in for 5 min and clear codes i'll play around with it more when i have free time at home.

for some odd reason they didnt read hardly anything off our 2012 ford 550s but on my 97 1500 it read pretty much everything.