That's a fun app. I've never heard of tripit, I'd used TripCase normally.I discover the app call Flighty where after you sync it with your TripIt account, it pulls all the flight details, from distance traveled, hours delayed, aircraft flown on and even the age of the aircraft.
I have a habit when getting on planes to read the manufacturered date, it's printed on a plate inside the door jamb when you get on. I was with a colleague who was a nervous flyer and explained my habit. As we got onto the plane, it was like a 1980s airframe or something lol. We sat down and the pilot announced a fault delaying take off. This lad was visibly sitting in his own mess