Yes. approach plates are available from many different locations, including free downloads from AIS, but as stated previously, integration is the key word here and gCAP was mentioned only as a possible low cost link aimed squarely at SEP pilots (CAT A).You make a good point with regards european trips, but SkyDemon is offered as a VFR package and I wouldn't suggest that it is extended to cover IFR route planning, what I hoped to suggest was the additional support for IMCR pilots who normally fly VFR but are prepared for poor weather and of course the IMCR isn't valid outside of UK airspace.
SF