FL (facelift) Q2 probs gets more, not sure what though, but the PFL (prefacelift) Q2 gets pretty much nothing from the app apart from the ability to send locations to the car and see the service history. The Q2 is a bit outdated now tech wise, not sure if they even updated this in the FLQ2 as the MMI seems the same. If it is the same then its shameful really as the rest of the range gets better tech. The "Q" ranges seem to lag behind the normal "A" range for tech.
Audi Connect gives you the Satélite maps, traffic info, the Audi Connect info in the MMI section.... think thats all the big ones, google it, sure there is a dedicated page somewhere.