Well, Runway HD has copied the SkyDemon look and feel over the years, but that doesn't make it 'the same'. Everything is even the same colour now. If you look at both products from about 5 metres away, you'll have trouble working out which is which. That said, it offers a mere fraction of the functionality once you dig beneath the surface.
The use of bitmap charts rather than vector ones is a personal choice and doesn't make one product better than another. Personally, I do not like bitmap charts. You have no control over what layers are visible, they are impossible to dynamically declutter, and all the text goes upside-down if you're not flying north up.
Garmin Pilot is - at the moment - utterly useless for the UK. It doesn't have complete vector mapping - no Class A is depicted anywhere - a very serious problem indeed, and you can't buy UK bitmap charts for it either. So it is unusable in either mode.