TripIt 17.5 for Mac was available to download from the developer's website when we last checked. We cannot confirm if there is a free download of this app available.
Please check the Mac app with an antivirus before launch as it is downloaded from the developer's website, and we cannot ensure that it is safe. The actual developer of this free Mac application is Concur Technologies, Inc. The program belongs to Lifestyle Tools.
From the developer:
TripIt allows you to keep up with your travel plans whether you’re at your desk or on the go—and even when you’re offline. It keeps you organized by creating a single itinerary for every trip. You can view, manage, and edit your flight, hotel, transportation, and other travel details. You will receive helpful reminders and alerts, like if your flight is canceled. Plus, TripIt syncs seamlessly with your iPhone and Apple Watch.
You may want to check out more software for Mac, such as FlightStatus or Sunrise Calendar, which might be similar to TripIt.