Yes. Get a ADS-B antenna if you are going to use it for IFR
OK ... I haven't even started instrument training yet ... but I didn't think you could use the iPad to fly IFR. I thought it had to be a specially approved, panel-mounted GPS to be legal. Am I misunderstanding?
You can't use it as a primary means of navigation but you can use it for additional info...
Sounds like the internal GPS will work for me. I also like the idea of getting free TMobile data with it. It isn't much, but plenty to keep up with weather at the airport if they don't have wifi.
I'll try the free trials of both iFly and Foreflight and pick the best.