Multiple apps with torque in the name

I have read several post here about the Torque app. My intent is to monitor transmission temperatures real time as I am going to pull a trailer next month. The issue is that when I open the the Apple Store there are several apps with torque in the name. Which is the one that you recommend? Btw, I have a Veepeak OBCD dongle already. Thank you,

 

I use Torque Pro $10 with BAFX $30. Find old android phone for that. Some people experience problems with apple.

 

A wired monitoring system like Scanguage is my trusted way of monitoring. Def not bad for the price imo. About $130 as of now when I did a quick check at Autozone. There may be better deals if you search around.

 

Thank you for the suggestions. I will keep you posted on what route I go.