There are a number of tools used by pilots, aviation students, and fans that help a lot to improve their knowledge or for entertainment during the free time.
Most of them are apps that help out pilots to organize a large part of their activities. They also keep records of the flights.
It is an app that let pilots know how the weather will be in the US in order to help them to avoid consequences provoked for bad weather conditions.
This app helps to measure the distance between the plane and a cloud that is near to it, in order to help the pilot know how to act before the plane and the cloud impact.
This is an app used for most of the airlines and for people that usually flight a lot. You can see the flight plan with which the pilot had planned to reach the destination.