The guy who made tuner studio doesn't have any interest in Megasqurt. He only makes money if you pay for the extra features in tunerstudio. I don't mind paying him knowing that.
You can download and use tunerstudio free. It's the 'auto tune' feature that he was referring to- you have to pay for access to that.
Make sure you get the mega log viewer as well ($20-$30). Can't view logs without it.
All my dyno tuning was done using logs.
I used the 'auto tune' to dial in idle, part throttle cruising, etc., while in the street.
Those two 'add ons' are well worth it for a beginner tuner. Sure, you can tune without them. But know at a minimum you need a way to log AFR's to RPM's.