Stowaway is a really cool application of publicly available, live fight information. I have been using FlightRadar24 on my phone for years. It’s a great way to answer “What is that plane?” Or “I wonder where they are going?”

Stowaway creates a graphical UI based on what you might be able to see from the ground, which is different than the top-down view of FlightRadar24. FlightRadar24 does also offer simulated views from the perspective of the aircraft.

The skies are very possibly more full of traffic than you might suspect.