2.2L? You have a stroker engine? Who tuned it before?
What experience do you have tuning cars? What do you mean by "software"? There are two prominent ecosystems out right now, although there are many options out there. Cobb and OpenSource are the most common today. Cobb tuning requires an Accessport and AccessTuner Race. That would be a $695 outlay for your car, and includes the accessport and tuning software.
A cheaper route would be OpenSource. For information on that, check out this write-up on NASIOC: where to begin with open source tuning - NASIOC