SDB73 said "AirNav Pro will run UK charts, and as long as you're happy with north up (which I personally am), they're completely fine."
ANP can do track up - it's a little symbol in the top left corner.
I find ANP pretty good, even on a brightish day (yesterday) en route to Sywell in a Jodel. Certainly better than cheap colour GPS (Aware).
One strange thing - I couldn't find any way to reverse a route?
Something else - ANP often crashes (disappears) shortly after loading - if it gets past the first few seconds, it's fine after that. Anyone else get this?