Question for Tunercat users

I was just reading on the tunercat website about tunercat for my 95 formula. I have been comparing it to LT1edit and it seems as though tunercat isn't locked to a specific ECM. Is this right? I know that the LT1edit boys match your version of the software to the vin stored in your computer but if you had a friends computer you wouldn't be able to retune that. Anyone know if this is correct? Also which does everyone prefer, Tunercat or LT1Edit. I'm leaning towards tunercat because it seems quite a bit cheaper. Thanks Beene

I use tuner cat but both use serial registering numbers so If you need to download the software you just reuse your registered serial number and re-enter your info but its best to save a tune to your email so you have a baseline to make adjustments incase you have to access it from away from home.