Plane Finder is a plane tracking app that’s been pretty popular for the iPhone despite it’s $5 price tag. I don’t get the app, but apparently a lot of people do. In fact, in Great Britain this thing has a solid 4.5stars in iTunes, but the US version lags at 3 stars. Why? It looks like the app tracks planes in real time but it doesn’t follow radar. It uses something called ADS-B which provides even more data than radar but it’s not required to be present on all planes yet so some areas show little coverage. For the planes that are covered, it seems to provide a ton of detail so aviation enthusiasts should get a kick out of this one. It’s the same price for WP7 at $5 and is available now in the Navigation category.
You can check the developers website for more information.