Hello all.

This question is asked repeatedly, please forgive me for asking it again.
In my case, I have an older Elantra and I am in the market for laptop software and a hardware connector (will ask about that elsewhere!) to the OBD2 link.
I have been looking into apps besides WinOLS. What I have been leaning towards are:

TunerPro RT
ECM2001 6.3

I don't know if TunerPro RT will even work for my car, but if anyone has a suggestion to what is better from their experience, I am all ears.
A little background on me, I am a programmer and can understand bin files. Not that I want to, but I could easily modify something with a hex editor if I was told what keys are for what.

Thanks for any help!