TripIt made good on its pledge and released a Seat Tracker feature in its premium TripIt Pro product.

Subscribers to the $49 per year TripIt Pro service can share their itineraries, identify their seat preferences (window or aisle, front or back of cabin, exit row or bulkhead), and then Seat Tracker alerts travelers when a seat more aligned with their preferences becomes available.

The feature also enables travelers to opt for economy, premium economy, business or first class, and they choose groups of seats, as many as four together.

Seat Tracker Mobile Screen - Alert

Seat Tracker will be available through TripIt’s mobile offerings “in the coming weeks,” the company says, and is accessible via the desktop already.

TripIt, a unit of Concur, has been trying to make TripIt Pro more attractive in light of the fact that Delta, United, and American no longer — and in the case of Southwest, never — allow access to frequent flyer mileage-tracking apps such as TripIt Pro.

However, TripIt Pro organizes itineraries (as does the free version of TripIt), provides automated point-tracking of other airlines, and offers fare-tracking, gate-change notifications, and alerts about delays and cancellations.

TripIt says Seat Tracker edges users closer to “the perfect trip” because passengers can secure preferred seats “before anyone else on your flight.”

Photo Credit: TripIt Pro's new Seat Tracker feature sends notifications when an airline seat becomes available that matches your preferences. TripIt