I am in the middle of a 14-day demo of App in the Air for iOS. It's okay. It has a social function as well where you can compete on a leaderboard against your friends in terms of how many km / hr were flown year to date. I am in first place so far among my 7 friends on the app...
Adding flights is not too hard in manual mode. They also allow you to connect it to your Google account so it can detect flight reservations from your gmail / calendar, though I am not too sure how I feel about that...