Plane Finder is described as «is built on Automatic Dependent Surveillance вЂ“ Broadcast (ADS-B) enabling the transmission of real-time data directly from, and to, aircraft» and is a flight search engine in the travel & location category. There are more than 25 alternatives to Plane Finder for a variety of platforms, including Online / Web-based, Android, iPhone, iPad and Windows. The best alternative is KAYAK, which is free. Other great apps like Plane Finder are Skyscanner, Google Flights, Invisible Hand and Momondo.Plane Finder alternatives are mainly Flight Search Engines but may also be Travel Planners or Flight Trackers. Filter by these if you want a narrower list of alternatives or looking for a specific functionality of Plane Finder.