New version of this popular app is released..
Price Rise on 1st Dec 2013
Loved the previous app but personally might not buy this one as this is not going to sync with Tripit .. More info on that http://www.mobiata.com/blog/2013/11/21/we-miss-it-too
Description
Welcome to a brand new version of FlightTrack. Rebuilt from the ground up, FlightTrack’s new design and user experience are tailored to the needs of the savvy traveler.
Please note that FlightTrack 5 does not currently include the ability to sync with TripIt.
Now, all FlightTrack users get push notifications with flight updates and can view terminal maps to help navigate to the gate. With FlightTrack, you can search flights by number or route in a single search field, create trips with multiple flights and travelers, and view the progression of an entire trip within a single workflow.
As always, you get real-time departure info, delays, and gate numbers at a glance. International coverage allows you to track flights worldwide. We even inform you of cancellations and help you find alternate flights when you're in a pinch.
TRAVEL SMART
• Specify all of the travelers on a trip so that can you easily see who's on which flights
• Add flights to your calendar
• Share flight status by email, iMessage/SMS, AirDrop, Facebook, and Twitter
• Share all the flights in a trip via email or AirDrop
• Add flight notes for seat numbers, confirmation numbers, and more
• Find out whether your flight has onboard wi-fi (when data is available)
PREDICT FLIGHT ISSUES
• Push alerts update you on flight changes even when the app is closed
• Predict flight delays with airport warnings
BEAUTIFUL MAPS
• Zoomable, live flight maps with satellite and weather radar imagery
• Actual flight paths shown when available
• Airport terminal and aircraft seat maps
DETAILED COVERAGE
• Real-time status for gates, delays, and cancellations
• Covers more than 3,000 airports and 1,400 airlines worldwide
• Check the weather forecast for travel locations
• Find alternate flights at a tap
• Airtime, aircraft, and speed & altitude (North-American flights only)
Please note that charter and private flights are not displayed.
So they released a "new" app instead of updating their existing app. Thus people have to repurchase the apps.
EDIT: BTW, old versions of their app wasn't exactly cheap either
http://appshopper.com/search/?search=flighttrack
$5.49 for the no ad version
$10.49 for the pro version
They even removed the old version of the Android app from the play store. So can't reinstall the old paid versions.