Authors describe import errors and limits on adding parts of a trip. What is needed is manual correction and the ability to save different types of booking.
TripIt excels at one thing: pulling bookings from confirmation emails into a single itinerary without manual input. Long-term fans value years of trip history. The weakness is that email parsing breaks periodically, and some features like seat assignments and calendar export are unreliable.
評価点：Forward a booking confirmation and get a complete itinerary with no manual steps.
不満点：Airline email import breaks or throws an error at the worst times, exactly when you need it on the road.
向いている人：Frequent business travelers and anyone with multi-segment itineraries
A corporate travel aggregator that keeps bookings in one place and sends notifications ahead of the airline, but flight booking through the app does not work, adding external bookings became cumbersome, and the interface lost usability after the redesign.
評価点：All flight, hotel, and transfer data in one feed with push alerts for delays.
不満点：Adding a flight to an existing trip can only be done as a separate new trip.
向いている人：Corporate travelers working with a BCD Travel agent
Marriott's brand app for searching and booking hotels with the Bonvoy loyalty program. Navigation is logical and booking is easy, but the digital key is unreliable and points can take up to a week to post.
評価点：The full trip management cycle in one place: search, booking, points tracking, and mobile check-in.
不満点：The digital key often fails at the door, and booking data diverges between the mobile app and the website.
向いている人：Regular Marriott guests with accumulated Bonvoy points
A reliable schedule tracker with solid push notifications for flights, but the product is limited to air travel: hotels and other events cannot be added, and the login interface breaks periodically.
評価点：Timely flight change notifications that match the airline's official data.
不満点：Hotels, transfers, and other trip events cannot be added. The app works only as a flight tracker.
向いている人：Frequent flyers who just want to monitor their flight status
A solid organizer for complex trips: the polished interface, email booking forwarding, and date-based timeline all work. The main weakness is unreliable flight notifications with no gate or baggage carousel data.
評価点：Smart email forwarding that automatically builds a chronological trip timeline.
不満点：Flight alerts are inconsistent: gate changes, delays, and baggage claim information arrive late or not at all.
向いている人：Organized travelers with long itineraries and multiple participants
