FabFilter

Hi, I’m trying to figure out if there are differences between the VST and Ipad version, but can’t seem to find any info on the full features of the Ipad version. Are there differences? My AI, Shiela (who talks to me with an Aussie accent) tells me there is no support for scala files. She makes up a lot of stuff and told me that there was MPE, but after first hand research I see that this has been planned for a couple years but not implimented yet? Please fill me in on, as I would like to know before making the decision to upgrade from twin2 + buy Ipad version. Also, is it possible to sidechain audiorate signals from an external source to be used as a modulator operator for FM? Thanks!