I paid for it and DL on phone, but I can't get it to give me transmission temps. It doesn't give me the green light. Any suggestions?

 

Uninstall and re-install the app. Sometimes there's issues with the install. I've had a few issues where deleting and adding the "gauge" to my screen fixes the issue and have had one where I had to un-installed and re-installed the whole app and all was good. The down side is that you will have to re-do all your settings.

 

If if I uninstall it will I be able to reinstall it it was a paid app

 

Once you buy it it's yours, no matter which device you use. I have 4 devices sharing my 1 Torque Pro app purchase.